Add files using upload-large-folder tool

env-llmeval/lib/python3.10/site-packages/scipy/datasets/__init__.py

@@ -0,0 +1,90 @@
+"""
+================================
+Datasets (:mod:`scipy.datasets`)
+================================
+
+.. currentmodule:: scipy.datasets
+
+Dataset Methods
+===============
+
+.. autosummary::
+   :toctree: generated/
+
+   ascent
+   face
+   electrocardiogram
+
+Utility Methods
+===============
+
+.. autosummary::
+   :toctree: generated/
+
+   download_all    -- Download all the dataset files to specified path.
+   clear_cache     -- Clear cached dataset directory.
+
+
+Usage of Datasets
+=================
+
+SciPy dataset methods can be simply called as follows: ``'<dataset-name>()'``
+This downloads the dataset files over the network once, and saves the cache,
+before returning a `numpy.ndarray` object representing the dataset.
+
+Note that the return data structure and data type might be different for
+different dataset methods. For a more detailed example on usage, please look
+into the particular dataset method documentation above.
+
+
+How dataset retrieval and storage works
+=======================================
+
+SciPy dataset files are stored within individual github repositories under the
+SciPy GitHub organization, following a naming convention as
+``'dataset-<name>'``, for example `scipy.datasets.face` files live at
+https://github.com/scipy/dataset-face.  The `scipy.datasets` submodule utilizes
+and depends on `Pooch <https://www.fatiando.org/pooch/latest/>`_, a Python
+package built to simplify fetching data files. Pooch uses these repos to
+retrieve the respective dataset files when calling the dataset function.
+
+A registry of all the datasets, essentially a mapping of filenames with their
+SHA256 hash and repo urls are maintained, which Pooch uses to handle and verify
+the downloads on function call. After downloading the dataset once, the files
+are saved in the system cache directory under ``'scipy-data'``.
+
+Dataset cache locations may vary on different platforms.
+
+For macOS::
+
+    '~/Library/Caches/scipy-data'
+
+For Linux and other Unix-like platforms::
+
+    '~/.cache/scipy-data'  # or the value of the XDG_CACHE_HOME env var, if defined
+
+For Windows::
+
+    'C:\\Users\\<user>\\AppData\\Local\\<AppAuthor>\\scipy-data\\Cache'
+
+
+In environments with constrained network connectivity for various security
+reasons or on systems without continuous internet connections, one may manually
+load the cache of the datasets by placing the contents of the dataset repo in
+the above mentioned cache directory to avoid fetching dataset errors without
+the internet connectivity.
+
+"""
+
+
+from ._fetchers import face, ascent, electrocardiogram
+from ._download_all import download_all
+from ._utils import clear_cache
+
+__all__ = ['ascent', 'electrocardiogram', 'face',
+           'download_all', 'clear_cache']
+
+
+from scipy._lib._testutils import PytestTester
+test = PytestTester(__name__)
+del PytestTester

env-llmeval/lib/python3.10/site-packages/scipy/datasets/_download_all.py

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+"""
+Platform independent script to download all the
+`scipy.datasets` module data files.
+This doesn't require a full scipy build.
+
+Run: python _download_all.py <download_dir>
+"""
+
+import argparse
+try:
+    import pooch
+except ImportError:
+    pooch = None
+
+
+if __package__ is None or __package__ == '':
+    # Running as python script, use absolute import
+    import _registry  # type: ignore
+else:
+    # Running as python module, use relative import
+    from . import _registry
+
+
+def download_all(path=None):
+    """
+    Utility method to download all the dataset files
+    for `scipy.datasets` module.
+
+    Parameters
+    ----------
+    path : str, optional
+        Directory path to download all the dataset files.
+        If None, default to the system cache_dir detected by pooch.
+    """
+    if pooch is None:
+        raise ImportError("Missing optional dependency 'pooch' required "
+                          "for scipy.datasets module. Please use pip or "
+                          "conda to install 'pooch'.")
+    if path is None:
+        path = pooch.os_cache('scipy-data')
+    for dataset_name, dataset_hash in _registry.registry.items():
+        pooch.retrieve(url=_registry.registry_urls[dataset_name],
+                       known_hash=dataset_hash,
+                       fname=dataset_name, path=path)
+
+
+def main():
+    parser = argparse.ArgumentParser(description='Download SciPy data files.')
+    parser.add_argument("path", nargs='?', type=str,
+                        default=pooch.os_cache('scipy-data'),
+                        help="Directory path to download all the data files.")
+    args = parser.parse_args()
+    download_all(args.path)
+
+
+if __name__ == "__main__":
+    main()

env-llmeval/lib/python3.10/site-packages/scipy/datasets/_fetchers.py

@@ -0,0 +1,220 @@
+from numpy import array, frombuffer, load
+from ._registry import registry, registry_urls
+
+try:
+    import pooch
+except ImportError:
+    pooch = None
+    data_fetcher = None
+else:
+    data_fetcher = pooch.create(
+        # Use the default cache folder for the operating system
+        # Pooch uses appdirs (https://github.com/ActiveState/appdirs) to
+        # select an appropriate directory for the cache on each platform.
+        path=pooch.os_cache("scipy-data"),
+
+        # The remote data is on Github
+        # base_url is a required param, even though we override this
+        # using individual urls in the registry.
+        base_url="https://github.com/scipy/",
+        registry=registry,
+        urls=registry_urls
+    )
+
+
+def fetch_data(dataset_name, data_fetcher=data_fetcher):
+    if data_fetcher is None:
+        raise ImportError("Missing optional dependency 'pooch' required "
+                          "for scipy.datasets module. Please use pip or "
+                          "conda to install 'pooch'.")
+    # The "fetch" method returns the full path to the downloaded data file.
+    return data_fetcher.fetch(dataset_name)
+
+
+def ascent():
+    """
+    Get an 8-bit grayscale bit-depth, 512 x 512 derived image for easy
+    use in demos.
+
+    The image is derived from accent-to-the-top.jpg at
+    http://www.public-domain-image.com/people-public-domain-images-pictures/
+
+    Parameters
+    ----------
+    None
+
+    Returns
+    -------
+    ascent : ndarray
+       convenient image to use for testing and demonstration
+
+    Examples
+    --------
+    >>> import scipy.datasets
+    >>> ascent = scipy.datasets.ascent()
+    >>> ascent.shape
+    (512, 512)
+    >>> ascent.max()
+    255
+
+    >>> import matplotlib.pyplot as plt
+    >>> plt.gray()
+    >>> plt.imshow(ascent)
+    >>> plt.show()
+
+    """
+    import pickle
+
+    # The file will be downloaded automatically the first time this is run,
+    # returning the path to the downloaded file. Afterwards, Pooch finds
+    # it in the local cache and doesn't repeat the download.
+    fname = fetch_data("ascent.dat")
+    # Now we just need to load it with our standard Python tools.
+    with open(fname, 'rb') as f:
+        ascent = array(pickle.load(f))
+    return ascent
+
+
+def electrocardiogram():
+    """
+    Load an electrocardiogram as an example for a 1-D signal.
+
+    The returned signal is a 5 minute long electrocardiogram (ECG), a medical
+    recording of the heart's electrical activity, sampled at 360 Hz.
+
+    Returns
+    -------
+    ecg : ndarray
+        The electrocardiogram in millivolt (mV) sampled at 360 Hz.
+
+    Notes
+    -----
+    The provided signal is an excerpt (19:35 to 24:35) from the `record 208`_
+    (lead MLII) provided by the MIT-BIH Arrhythmia Database [1]_ on
+    PhysioNet [2]_. The excerpt includes noise induced artifacts, typical
+    heartbeats as well as pathological changes.
+
+    .. _record 208: https://physionet.org/physiobank/database/html/mitdbdir/records.htm#208
+
+    .. versionadded:: 1.1.0
+
+    References
+    ----------
+    .. [1] Moody GB, Mark RG. The impact of the MIT-BIH Arrhythmia Database.
+           IEEE Eng in Med and Biol 20(3):45-50 (May-June 2001).
+           (PMID: 11446209); :doi:`10.13026/C2F305`
+    .. [2] Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh,
+           Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank,
+           PhysioToolkit, and PhysioNet: Components of a New Research Resource
+           for Complex Physiologic Signals. Circulation 101(23):e215-e220;
+           :doi:`10.1161/01.CIR.101.23.e215`
+
+    Examples
+    --------
+    >>> from scipy.datasets import electrocardiogram
+    >>> ecg = electrocardiogram()
+    >>> ecg
+    array([-0.245, -0.215, -0.185, ..., -0.405, -0.395, -0.385])
+    >>> ecg.shape, ecg.mean(), ecg.std()
+    ((108000,), -0.16510875, 0.5992473991177294)
+
+    As stated the signal features several areas with a different morphology.
+    E.g., the first few seconds show the electrical activity of a heart in
+    normal sinus rhythm as seen below.
+
+    >>> import numpy as np
+    >>> import matplotlib.pyplot as plt
+    >>> fs = 360
+    >>> time = np.arange(ecg.size) / fs
+    >>> plt.plot(time, ecg)
+    >>> plt.xlabel("time in s")
+    >>> plt.ylabel("ECG in mV")
+    >>> plt.xlim(9, 10.2)
+    >>> plt.ylim(-1, 1.5)
+    >>> plt.show()
+
+    After second 16, however, the first premature ventricular contractions,
+    also called extrasystoles, appear. These have a different morphology
+    compared to typical heartbeats. The difference can easily be observed
+    in the following plot.
+
+    >>> plt.plot(time, ecg)
+    >>> plt.xlabel("time in s")
+    >>> plt.ylabel("ECG in mV")
+    >>> plt.xlim(46.5, 50)
+    >>> plt.ylim(-2, 1.5)
+    >>> plt.show()
+
+    At several points large artifacts disturb the recording, e.g.:
+
+    >>> plt.plot(time, ecg)
+    >>> plt.xlabel("time in s")
+    >>> plt.ylabel("ECG in mV")
+    >>> plt.xlim(207, 215)
+    >>> plt.ylim(-2, 3.5)
+    >>> plt.show()
+
+    Finally, examining the power spectrum reveals that most of the biosignal is
+    made up of lower frequencies. At 60 Hz the noise induced by the mains
+    electricity can be clearly observed.
+
+    >>> from scipy.signal import welch
+    >>> f, Pxx = welch(ecg, fs=fs, nperseg=2048, scaling="spectrum")
+    >>> plt.semilogy(f, Pxx)
+    >>> plt.xlabel("Frequency in Hz")
+    >>> plt.ylabel("Power spectrum of the ECG in mV**2")
+    >>> plt.xlim(f[[0, -1]])
+    >>> plt.show()
+    """
+    fname = fetch_data("ecg.dat")
+    with load(fname) as file:
+        ecg = file["ecg"].astype(int)  # np.uint16 -> int
+    # Convert raw output of ADC to mV: (ecg - adc_zero) / adc_gain
+    ecg = (ecg - 1024) / 200.0
+    return ecg
+
+
+def face(gray=False):
+    """
+    Get a 1024 x 768, color image of a raccoon face.
+
+    raccoon-procyon-lotor.jpg at http://www.public-domain-image.com
+
+    Parameters
+    ----------
+    gray : bool, optional
+        If True return 8-bit grey-scale image, otherwise return a color image
+
+    Returns
+    -------
+    face : ndarray
+        image of a raccoon face
+
+    Examples
+    --------
+    >>> import scipy.datasets
+    >>> face = scipy.datasets.face()
+    >>> face.shape
+    (768, 1024, 3)
+    >>> face.max()
+    255
+    >>> face.dtype
+    dtype('uint8')
+
+    >>> import matplotlib.pyplot as plt
+    >>> plt.gray()
+    >>> plt.imshow(face)
+    >>> plt.show()
+
+    """
+    import bz2
+    fname = fetch_data("face.dat")
+    with open(fname, 'rb') as f:
+        rawdata = f.read()
+    face_data = bz2.decompress(rawdata)
+    face = frombuffer(face_data, dtype='uint8')
+    face.shape = (768, 1024, 3)
+    if gray is True:
+        face = (0.21 * face[:, :, 0] + 0.71 * face[:, :, 1] +
+                0.07 * face[:, :, 2]).astype('uint8')
+    return face

env-llmeval/lib/python3.10/site-packages/scipy/datasets/_registry.py

@@ -0,0 +1,26 @@
+##########################################################################
+# This file serves as the dataset registry for SciPy Datasets SubModule.
+##########################################################################
+
+
+# To generate the SHA256 hash, use the command
+# openssl sha256 <filename>
+registry = {
+    "ascent.dat": "03ce124c1afc880f87b55f6b061110e2e1e939679184f5614e38dacc6c1957e2",
+    "ecg.dat": "f20ad3365fb9b7f845d0e5c48b6fe67081377ee466c3a220b7f69f35c8958baf",
+    "face.dat": "9d8b0b4d081313e2b485748c770472e5a95ed1738146883d84c7030493e82886"
+}
+
+registry_urls = {
+    "ascent.dat": "https://raw.githubusercontent.com/scipy/dataset-ascent/main/ascent.dat",
+    "ecg.dat": "https://raw.githubusercontent.com/scipy/dataset-ecg/main/ecg.dat",
+    "face.dat": "https://raw.githubusercontent.com/scipy/dataset-face/main/face.dat"
+}
+
+# dataset method mapping with their associated filenames
+# <method_name> : ["filename1", "filename2", ...]
+method_files_map = {
+    "ascent": ["ascent.dat"],
+    "electrocardiogram": ["ecg.dat"],
+    "face": ["face.dat"]
+}

env-llmeval/lib/python3.10/site-packages/scipy/datasets/_utils.py

@@ -0,0 +1,81 @@
+import os
+import shutil
+from ._registry import method_files_map
+
+try:
+    import platformdirs
+except ImportError:
+    platformdirs = None  # type: ignore[assignment]
+
+
+def _clear_cache(datasets, cache_dir=None, method_map=None):
+    if method_map is None:
+        # Use SciPy Datasets method map
+        method_map = method_files_map
+    if cache_dir is None:
+        # Use default cache_dir path
+        if platformdirs is None:
+            # platformdirs is pooch dependency
+            raise ImportError("Missing optional dependency 'pooch' required "
+                              "for scipy.datasets module. Please use pip or "
+                              "conda to install 'pooch'.")
+        cache_dir = platformdirs.user_cache_dir("scipy-data")
+
+    if not os.path.exists(cache_dir):
+        print(f"Cache Directory {cache_dir} doesn't exist. Nothing to clear.")
+        return
+
+    if datasets is None:
+        print(f"Cleaning the cache directory {cache_dir}!")
+        shutil.rmtree(cache_dir)
+    else:
+        if not isinstance(datasets, (list, tuple)):
+            # single dataset method passed should be converted to list
+            datasets = [datasets, ]
+        for dataset in datasets:
+            assert callable(dataset)
+            dataset_name = dataset.__name__  # Name of the dataset method
+            if dataset_name not in method_map:
+                raise ValueError(f"Dataset method {dataset_name} doesn't "
+                                 "exist. Please check if the passed dataset "
+                                 "is a subset of the following dataset "
+                                 f"methods: {list(method_map.keys())}")
+
+            data_files = method_map[dataset_name]
+            data_filepaths = [os.path.join(cache_dir, file)
+                              for file in data_files]
+            for data_filepath in data_filepaths:
+                if os.path.exists(data_filepath):
+                    print("Cleaning the file "
+                          f"{os.path.split(data_filepath)[1]} "
+                          f"for dataset {dataset_name}")
+                    os.remove(data_filepath)
+                else:
+                    print(f"Path {data_filepath} doesn't exist. "
+                          "Nothing to clear.")
+
+
+def clear_cache(datasets=None):
+    """
+    Cleans the scipy datasets cache directory.
+
+    If a scipy.datasets method or a list/tuple of the same is
+    provided, then clear_cache removes all the data files
+    associated to the passed dataset method callable(s).
+
+    By default, it removes all the cached data files.
+
+    Parameters
+    ----------
+    datasets : callable or list/tuple of callable or None
+
+    Examples
+    --------
+    >>> from scipy import datasets
+    >>> ascent_array = datasets.ascent()
+    >>> ascent_array.shape
+    (512, 512)
+    >>> datasets.clear_cache([datasets.ascent])
+    Cleaning the file ascent.dat for dataset ascent
+    """
+    _clear_cache(datasets)

env-llmeval/lib/python3.10/site-packages/scipy/datasets/tests/test_data.py

@@ -0,0 +1,123 @@
+from scipy.datasets._registry import registry
+from scipy.datasets._fetchers import data_fetcher
+from scipy.datasets._utils import _clear_cache
+from scipy.datasets import ascent, face, electrocardiogram, download_all
+from numpy.testing import assert_equal, assert_almost_equal
+import os
+import pytest
+
+try:
+    import pooch
+except ImportError:
+    raise ImportError("Missing optional dependency 'pooch' required "
+                      "for scipy.datasets module. Please use pip or "
+                      "conda to install 'pooch'.")
+
+
+data_dir = data_fetcher.path  # type: ignore
+
+
+def _has_hash(path, expected_hash):
+    """Check if the provided path has the expected hash."""
+    if not os.path.exists(path):
+        return False
+    return pooch.file_hash(path) == expected_hash
+
+
+class TestDatasets:
+
+    @pytest.fixture(scope='module', autouse=True)
+    def test_download_all(self):
+        # This fixture requires INTERNET CONNECTION
+
+        # test_setup phase
+        download_all()
+
+        yield
+
+    def test_existence_all(self):
+        assert len(os.listdir(data_dir)) >= len(registry)
+
+    def test_ascent(self):
+        assert_equal(ascent().shape, (512, 512))
+
+        # hash check
+        assert _has_hash(os.path.join(data_dir, "ascent.dat"),
+                         registry["ascent.dat"])
+
+    def test_face(self):
+        assert_equal(face().shape, (768, 1024, 3))
+
+        # hash check
+        assert _has_hash(os.path.join(data_dir, "face.dat"),
+                         registry["face.dat"])
+
+    def test_electrocardiogram(self):
+        # Test shape, dtype and stats of signal
+        ecg = electrocardiogram()
+        assert_equal(ecg.dtype, float)
+        assert_equal(ecg.shape, (108000,))
+        assert_almost_equal(ecg.mean(), -0.16510875)
+        assert_almost_equal(ecg.std(), 0.5992473991177294)
+
+        # hash check
+        assert _has_hash(os.path.join(data_dir, "ecg.dat"),
+                         registry["ecg.dat"])
+
+
+def test_clear_cache(tmp_path):
+    # Note: `tmp_path` is a pytest fixture, it handles cleanup
+    dummy_basepath = tmp_path / "dummy_cache_dir"
+    dummy_basepath.mkdir()
+
+    # Create three dummy dataset files for dummy dataset methods
+    dummy_method_map = {}
+    for i in range(4):
+        dummy_method_map[f"data{i}"] = [f"data{i}.dat"]
+        data_filepath = dummy_basepath / f"data{i}.dat"
+        data_filepath.write_text("")
+
+    # clear files associated to single dataset method data0
+    # also test callable argument instead of list of callables
+    def data0():
+        pass
+    _clear_cache(datasets=data0, cache_dir=dummy_basepath,
+                 method_map=dummy_method_map)
+    assert not os.path.exists(dummy_basepath/"data0.dat")
+
+    # clear files associated to multiple dataset methods "data3" and "data4"
+    def data1():
+        pass
+
+    def data2():
+        pass
+    _clear_cache(datasets=[data1, data2], cache_dir=dummy_basepath,
+                 method_map=dummy_method_map)
+    assert not os.path.exists(dummy_basepath/"data1.dat")
+    assert not os.path.exists(dummy_basepath/"data2.dat")
+
+    # clear multiple dataset files "data3_0.dat" and "data3_1.dat"
+    # associated with dataset method "data3"
+    def data4():
+        pass
+    # create files
+    (dummy_basepath / "data4_0.dat").write_text("")
+    (dummy_basepath / "data4_1.dat").write_text("")
+
+    dummy_method_map["data4"] = ["data4_0.dat", "data4_1.dat"]
+    _clear_cache(datasets=[data4], cache_dir=dummy_basepath,
+                 method_map=dummy_method_map)
+    assert not os.path.exists(dummy_basepath/"data4_0.dat")
+    assert not os.path.exists(dummy_basepath/"data4_1.dat")
+
+    # wrong dataset method should raise ValueError since it
+    # doesn't exist in the dummy_method_map
+    def data5():
+        pass
+    with pytest.raises(ValueError):
+        _clear_cache(datasets=[data5], cache_dir=dummy_basepath,
+                     method_map=dummy_method_map)
+
+    # remove all dataset cache
+    _clear_cache(datasets=None, cache_dir=dummy_basepath)
+    assert not os.path.exists(dummy_basepath)

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/__init__.py

@@ -0,0 +1,28 @@
+"""
+Module to read ARFF files
+=========================
+ARFF is the standard data format for WEKA.
+It is a text file format which support numerical, string and data values.
+The format can also represent missing data and sparse data.
+
+Notes
+-----
+The ARFF support in ``scipy.io`` provides file reading functionality only.
+For more extensive ARFF functionality, see `liac-arff
+<https://github.com/renatopp/liac-arff>`_.
+
+See the `WEKA website <http://weka.wikispaces.com/ARFF>`_
+for more details about the ARFF format and available datasets.
+
+"""
+from ._arffread import *
+from . import _arffread
+
+# Deprecated namespaces, to be removed in v2.0.0
+from .import arffread
+
+__all__ = _arffread.__all__ + ['arffread']
+
+from scipy._lib._testutils import PytestTester
+test = PytestTester(__name__)
+del PytestTester

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/_arffread.py

@@ -0,0 +1,907 @@
+# Last Change: Mon Aug 20 08:00 PM 2007 J
+import re
+import datetime
+
+import numpy as np
+
+import csv
+import ctypes
+
+"""A module to read arff files."""
+
+__all__ = ['MetaData', 'loadarff', 'ArffError', 'ParseArffError']
+
+# An Arff file is basically two parts:
+#   - header
+#   - data
+#
+# A header has each of its components starting by @META where META is one of
+# the keyword (attribute of relation, for now).
+
+# TODO:
+#   - both integer and reals are treated as numeric -> the integer info
+#    is lost!
+#   - Replace ValueError by ParseError or something
+
+# We know can handle the following:
+#   - numeric and nominal attributes
+#   - missing values for numeric attributes
+
+r_meta = re.compile(r'^\s*@')
+# Match a comment
+r_comment = re.compile(r'^%')
+# Match an empty line
+r_empty = re.compile(r'^\s+$')
+# Match a header line, that is a line which starts by @ + a word
+r_headerline = re.compile(r'^\s*@\S*')
+r_datameta = re.compile(r'^@[Dd][Aa][Tt][Aa]')
+r_relation = re.compile(r'^@[Rr][Ee][Ll][Aa][Tt][Ii][Oo][Nn]\s*(\S*)')
+r_attribute = re.compile(r'^\s*@[Aa][Tt][Tt][Rr][Ii][Bb][Uu][Tt][Ee]\s*(..*$)')
+
+r_nominal = re.compile(r'{(.+)}')
+r_date = re.compile(r"[Dd][Aa][Tt][Ee]\s+[\"']?(.+?)[\"']?$")
+
+# To get attributes name enclosed with ''
+r_comattrval = re.compile(r"'(..+)'\s+(..+$)")
+# To get normal attributes
+r_wcomattrval = re.compile(r"(\S+)\s+(..+$)")
+
+# ------------------------
+# Module defined exception
+# ------------------------
+
+
+class ArffError(OSError):
+    pass
+
+
+class ParseArffError(ArffError):
+    pass
+
+
+# ----------
+# Attributes
+# ----------
+class Attribute:
+
+    type_name = None
+
+    def __init__(self, name):
+        self.name = name
+        self.range = None
+        self.dtype = np.object_
+
+    @classmethod
+    def parse_attribute(cls, name, attr_string):
+        """
+        Parse the attribute line if it knows how. Returns the parsed
+        attribute, or None.
+        """
+        return None
+
+    def parse_data(self, data_str):
+        """
+        Parse a value of this type.
+        """
+        return None
+
+    def __str__(self):
+        """
+        Parse a value of this type.
+        """
+        return self.name + ',' + self.type_name
+
+
+class NominalAttribute(Attribute):
+
+    type_name = 'nominal'
+
+    def __init__(self, name, values):
+        super().__init__(name)
+        self.values = values
+        self.range = values
+        self.dtype = (np.bytes_, max(len(i) for i in values))
+
+    @staticmethod
+    def _get_nom_val(atrv):
+        """Given a string containing a nominal type, returns a tuple of the
+        possible values.
+
+        A nominal type is defined as something framed between braces ({}).
+
+        Parameters
+        ----------
+        atrv : str
+           Nominal type definition
+
+        Returns
+        -------
+        poss_vals : tuple
+           possible values
+
+        Examples
+        --------
+        >>> from scipy.io.arff._arffread import NominalAttribute
+        >>> NominalAttribute._get_nom_val("{floup, bouga, fl, ratata}")
+        ('floup', 'bouga', 'fl', 'ratata')
+        """
+        m = r_nominal.match(atrv)
+        if m:
+            attrs, _ = split_data_line(m.group(1))
+            return tuple(attrs)
+        else:
+            raise ValueError("This does not look like a nominal string")
+
+    @classmethod
+    def parse_attribute(cls, name, attr_string):
+        """
+        Parse the attribute line if it knows how. Returns the parsed
+        attribute, or None.
+
+        For nominal attributes, the attribute string would be like '{<attr_1>,
+         <attr2>, <attr_3>}'.
+        """
+        if attr_string[0] == '{':
+            values = cls._get_nom_val(attr_string)
+            return cls(name, values)
+        else:
+            return None
+
+    def parse_data(self, data_str):
+        """
+        Parse a value of this type.
+        """
+        if data_str in self.values:
+            return data_str
+        elif data_str == '?':
+            return data_str
+        else:
+            raise ValueError(f"{str(data_str)} value not in {str(self.values)}")
+
+    def __str__(self):
+        msg = self.name + ",{"
+        for i in range(len(self.values)-1):
+            msg += self.values[i] + ","
+        msg += self.values[-1]
+        msg += "}"
+        return msg
+
+
+class NumericAttribute(Attribute):
+
+    def __init__(self, name):
+        super().__init__(name)
+        self.type_name = 'numeric'
+        self.dtype = np.float64
+
+    @classmethod
+    def parse_attribute(cls, name, attr_string):
+        """
+        Parse the attribute line if it knows how. Returns the parsed
+        attribute, or None.
+
+        For numeric attributes, the attribute string would be like
+        'numeric' or 'int' or 'real'.
+        """
+
+        attr_string = attr_string.lower().strip()
+
+        if (attr_string[:len('numeric')] == 'numeric' or
+           attr_string[:len('int')] == 'int' or
+           attr_string[:len('real')] == 'real'):
+            return cls(name)
+        else:
+            return None
+
+    def parse_data(self, data_str):
+        """
+        Parse a value of this type.
+
+        Parameters
+        ----------
+        data_str : str
+           string to convert
+
+        Returns
+        -------
+        f : float
+           where float can be nan
+
+        Examples
+        --------
+        >>> from scipy.io.arff._arffread import NumericAttribute
+        >>> atr = NumericAttribute('atr')
+        >>> atr.parse_data('1')
+        1.0
+        >>> atr.parse_data('1\\n')
+        1.0
+        >>> atr.parse_data('?\\n')
+        nan
+        """
+        if '?' in data_str:
+            return np.nan
+        else:
+            return float(data_str)
+
+    def _basic_stats(self, data):
+        nbfac = data.size * 1. / (data.size - 1)
+        return (np.nanmin(data), np.nanmax(data),
+                np.mean(data), np.std(data) * nbfac)
+
+
+class StringAttribute(Attribute):
+
+    def __init__(self, name):
+        super().__init__(name)
+        self.type_name = 'string'
+
+    @classmethod
+    def parse_attribute(cls, name, attr_string):
+        """
+        Parse the attribute line if it knows how. Returns the parsed
+        attribute, or None.
+
+        For string attributes, the attribute string would be like
+        'string'.
+        """
+
+        attr_string = attr_string.lower().strip()
+
+        if attr_string[:len('string')] == 'string':
+            return cls(name)
+        else:
+            return None
+
+
+class DateAttribute(Attribute):
+
+    def __init__(self, name, date_format, datetime_unit):
+        super().__init__(name)
+        self.date_format = date_format
+        self.datetime_unit = datetime_unit
+        self.type_name = 'date'
+        self.range = date_format
+        self.dtype = np.datetime64(0, self.datetime_unit)
+
+    @staticmethod
+    def _get_date_format(atrv):
+        m = r_date.match(atrv)
+        if m:
+            pattern = m.group(1).strip()
+            # convert time pattern from Java's SimpleDateFormat to C's format
+            datetime_unit = None
+            if "yyyy" in pattern:
+                pattern = pattern.replace("yyyy", "%Y")
+                datetime_unit = "Y"
+            elif "yy":
+                pattern = pattern.replace("yy", "%y")
+                datetime_unit = "Y"
+            if "MM" in pattern:
+                pattern = pattern.replace("MM", "%m")
+                datetime_unit = "M"
+            if "dd" in pattern:
+                pattern = pattern.replace("dd", "%d")
+                datetime_unit = "D"
+            if "HH" in pattern:
+                pattern = pattern.replace("HH", "%H")
+                datetime_unit = "h"
+            if "mm" in pattern:
+                pattern = pattern.replace("mm", "%M")
+                datetime_unit = "m"
+            if "ss" in pattern:
+                pattern = pattern.replace("ss", "%S")
+                datetime_unit = "s"
+            if "z" in pattern or "Z" in pattern:
+                raise ValueError("Date type attributes with time zone not "
+                                 "supported, yet")
+
+            if datetime_unit is None:
+                raise ValueError("Invalid or unsupported date format")
+
+            return pattern, datetime_unit
+        else:
+            raise ValueError("Invalid or no date format")
+
+    @classmethod
+    def parse_attribute(cls, name, attr_string):
+        """
+        Parse the attribute line if it knows how. Returns the parsed
+        attribute, or None.
+
+        For date attributes, the attribute string would be like
+        'date <format>'.
+        """
+
+        attr_string_lower = attr_string.lower().strip()
+
+        if attr_string_lower[:len('date')] == 'date':
+            date_format, datetime_unit = cls._get_date_format(attr_string)
+            return cls(name, date_format, datetime_unit)
+        else:
+            return None
+
+    def parse_data(self, data_str):
+        """
+        Parse a value of this type.
+        """
+        date_str = data_str.strip().strip("'").strip('"')
+        if date_str == '?':
+            return np.datetime64('NaT', self.datetime_unit)
+        else:
+            dt = datetime.datetime.strptime(date_str, self.date_format)
+            return np.datetime64(dt).astype(
+                "datetime64[%s]" % self.datetime_unit)
+
+    def __str__(self):
+        return super().__str__() + ',' + self.date_format
+
+
+class RelationalAttribute(Attribute):
+
+    def __init__(self, name):
+        super().__init__(name)
+        self.type_name = 'relational'
+        self.dtype = np.object_
+        self.attributes = []
+        self.dialect = None
+
+    @classmethod
+    def parse_attribute(cls, name, attr_string):
+        """
+        Parse the attribute line if it knows how. Returns the parsed
+        attribute, or None.
+
+        For date attributes, the attribute string would be like
+        'date <format>'.
+        """
+
+        attr_string_lower = attr_string.lower().strip()
+
+        if attr_string_lower[:len('relational')] == 'relational':
+            return cls(name)
+        else:
+            return None
+
+    def parse_data(self, data_str):
+        # Copy-pasted
+        elems = list(range(len(self.attributes)))
+
+        escaped_string = data_str.encode().decode("unicode-escape")
+
+        row_tuples = []
+
+        for raw in escaped_string.split("\n"):
+            row, self.dialect = split_data_line(raw, self.dialect)
+
+            row_tuples.append(tuple(
+                [self.attributes[i].parse_data(row[i]) for i in elems]))
+
+        return np.array(row_tuples,
+                        [(a.name, a.dtype) for a in self.attributes])
+
+    def __str__(self):
+        return (super().__str__() + '\n\t' +
+                '\n\t'.join(str(a) for a in self.attributes))
+
+
+# -----------------
+# Various utilities
+# -----------------
+def to_attribute(name, attr_string):
+    attr_classes = (NominalAttribute, NumericAttribute, DateAttribute,
+                    StringAttribute, RelationalAttribute)
+
+    for cls in attr_classes:
+        attr = cls.parse_attribute(name, attr_string)
+        if attr is not None:
+            return attr
+
+    raise ParseArffError("unknown attribute %s" % attr_string)
+
+
+def csv_sniffer_has_bug_last_field():
+    """
+    Checks if the bug https://bugs.python.org/issue30157 is unpatched.
+    """
+
+    # We only compute this once.
+    has_bug = getattr(csv_sniffer_has_bug_last_field, "has_bug", None)
+
+    if has_bug is None:
+        dialect = csv.Sniffer().sniff("3, 'a'")
+        csv_sniffer_has_bug_last_field.has_bug = dialect.quotechar != "'"
+        has_bug = csv_sniffer_has_bug_last_field.has_bug
+
+    return has_bug
+
+
+def workaround_csv_sniffer_bug_last_field(sniff_line, dialect, delimiters):
+    """
+    Workaround for the bug https://bugs.python.org/issue30157 if is unpatched.
+    """
+    if csv_sniffer_has_bug_last_field():
+        # Reuses code from the csv module
+        right_regex = r'(?P<delim>[^\w\n"\'])(?P<space> ?)(?P<quote>["\']).*?(?P=quote)(?:$|\n)'  # noqa: E501
+
+        for restr in (r'(?P<delim>[^\w\n"\'])(?P<space> ?)(?P<quote>["\']).*?(?P=quote)(?P=delim)',  # ,".*?",  # noqa: E501
+                      r'(?:^|\n)(?P<quote>["\']).*?(?P=quote)(?P<delim>[^\w\n"\'])(?P<space> ?)',  # .*?",  # noqa: E501
+                      right_regex,  # ,".*?"
+                      r'(?:^|\n)(?P<quote>["\']).*?(?P=quote)(?:$|\n)'):  # ".*?" (no delim, no space)  # noqa: E501
+            regexp = re.compile(restr, re.DOTALL | re.MULTILINE)
+            matches = regexp.findall(sniff_line)
+            if matches:
+                break
+
+        # If it does not match the expression that was bugged,
+        # then this bug does not apply
+        if restr != right_regex:
+            return
+
+        groupindex = regexp.groupindex
+
+        # There is only one end of the string
+        assert len(matches) == 1
+        m = matches[0]
+
+        n = groupindex['quote'] - 1
+        quote = m[n]
+
+        n = groupindex['delim'] - 1
+        delim = m[n]
+
+        n = groupindex['space'] - 1
+        space = bool(m[n])
+
+        dq_regexp = re.compile(
+            rf"(({re.escape(delim)})|^)\W*{quote}[^{re.escape(delim)}\n]*{quote}[^{re.escape(delim)}\n]*{quote}\W*(({re.escape(delim)})|$)", re.MULTILINE  # noqa: E501
+        )
+
+        doublequote = bool(dq_regexp.search(sniff_line))
+
+        dialect.quotechar = quote
+        if delim in delimiters:
+            dialect.delimiter = delim
+        dialect.doublequote = doublequote
+        dialect.skipinitialspace = space
+
+
+def split_data_line(line, dialect=None):
+    delimiters = ",\t"
+
+    # This can not be done in a per reader basis, and relational fields
+    # can be HUGE
+    csv.field_size_limit(int(ctypes.c_ulong(-1).value // 2))
+
+    # Remove the line end if any
+    if line[-1] == '\n':
+        line = line[:-1]
+    
+    # Remove potential trailing whitespace
+    line = line.strip()
+    
+    sniff_line = line
+
+    # Add a delimiter if none is present, so that the csv.Sniffer
+    # does not complain for a single-field CSV.
+    if not any(d in line for d in delimiters):
+        sniff_line += ","
+
+    if dialect is None:
+        dialect = csv.Sniffer().sniff(sniff_line, delimiters=delimiters)
+        workaround_csv_sniffer_bug_last_field(sniff_line=sniff_line,
+                                              dialect=dialect,
+                                              delimiters=delimiters)
+
+    row = next(csv.reader([line], dialect))
+
+    return row, dialect
+
+
+# --------------
+# Parsing header
+# --------------
+def tokenize_attribute(iterable, attribute):
+    """Parse a raw string in header (e.g., starts by @attribute).
+
+    Given a raw string attribute, try to get the name and type of the
+    attribute. Constraints:
+
+    * The first line must start with @attribute (case insensitive, and
+      space like characters before @attribute are allowed)
+    * Works also if the attribute is spread on multilines.
+    * Works if empty lines or comments are in between
+
+    Parameters
+    ----------
+    attribute : str
+       the attribute string.
+
+    Returns
+    -------
+    name : str
+       name of the attribute
+    value : str
+       value of the attribute
+    next : str
+       next line to be parsed
+
+    Examples
+    --------
+    If attribute is a string defined in python as r"floupi real", will
+    return floupi as name, and real as value.
+
+    >>> from scipy.io.arff._arffread import tokenize_attribute
+    >>> iterable = iter([0] * 10) # dummy iterator
+    >>> tokenize_attribute(iterable, r"@attribute floupi real")
+    ('floupi', 'real', 0)
+
+    If attribute is r"'floupi 2' real", will return 'floupi 2' as name,
+    and real as value.
+
+    >>> tokenize_attribute(iterable, r"  @attribute 'floupi 2' real   ")
+    ('floupi 2', 'real', 0)
+
+    """
+    sattr = attribute.strip()
+    mattr = r_attribute.match(sattr)
+    if mattr:
+        # atrv is everything after @attribute
+        atrv = mattr.group(1)
+        if r_comattrval.match(atrv):
+            name, type = tokenize_single_comma(atrv)
+            next_item = next(iterable)
+        elif r_wcomattrval.match(atrv):
+            name, type = tokenize_single_wcomma(atrv)
+            next_item = next(iterable)
+        else:
+            # Not sure we should support this, as it does not seem supported by
+            # weka.
+            raise ValueError("multi line not supported yet")
+    else:
+        raise ValueError("First line unparsable: %s" % sattr)
+
+    attribute = to_attribute(name, type)
+
+    if type.lower() == 'relational':
+        next_item = read_relational_attribute(iterable, attribute, next_item)
+    #    raise ValueError("relational attributes not supported yet")
+
+    return attribute, next_item
+
+
+def tokenize_single_comma(val):
+    # XXX we match twice the same string (here and at the caller level). It is
+    # stupid, but it is easier for now...
+    m = r_comattrval.match(val)
+    if m:
+        try:
+            name = m.group(1).strip()
+            type = m.group(2).strip()
+        except IndexError as e:
+            raise ValueError("Error while tokenizing attribute") from e
+    else:
+        raise ValueError("Error while tokenizing single %s" % val)
+    return name, type
+
+
+def tokenize_single_wcomma(val):
+    # XXX we match twice the same string (here and at the caller level). It is
+    # stupid, but it is easier for now...
+    m = r_wcomattrval.match(val)
+    if m:
+        try:
+            name = m.group(1).strip()
+            type = m.group(2).strip()
+        except IndexError as e:
+            raise ValueError("Error while tokenizing attribute") from e
+    else:
+        raise ValueError("Error while tokenizing single %s" % val)
+    return name, type
+
+
+def read_relational_attribute(ofile, relational_attribute, i):
+    """Read the nested attributes of a relational attribute"""
+
+    r_end_relational = re.compile(r'^@[Ee][Nn][Dd]\s*' +
+                                  relational_attribute.name + r'\s*$')
+
+    while not r_end_relational.match(i):
+        m = r_headerline.match(i)
+        if m:
+            isattr = r_attribute.match(i)
+            if isattr:
+                attr, i = tokenize_attribute(ofile, i)
+                relational_attribute.attributes.append(attr)
+            else:
+                raise ValueError("Error parsing line %s" % i)
+        else:
+            i = next(ofile)
+
+    i = next(ofile)
+    return i
+
+
+def read_header(ofile):
+    """Read the header of the iterable ofile."""
+    i = next(ofile)
+
+    # Pass first comments
+    while r_comment.match(i):
+        i = next(ofile)
+
+    # Header is everything up to DATA attribute ?
+    relation = None
+    attributes = []
+    while not r_datameta.match(i):
+        m = r_headerline.match(i)
+        if m:
+            isattr = r_attribute.match(i)
+            if isattr:
+                attr, i = tokenize_attribute(ofile, i)
+                attributes.append(attr)
+            else:
+                isrel = r_relation.match(i)
+                if isrel:
+                    relation = isrel.group(1)
+                else:
+                    raise ValueError("Error parsing line %s" % i)
+                i = next(ofile)
+        else:
+            i = next(ofile)
+
+    return relation, attributes
+
+
+class MetaData:
+    """Small container to keep useful information on a ARFF dataset.
+
+    Knows about attributes names and types.
+
+    Examples
+    --------
+    ::
+
+        data, meta = loadarff('iris.arff')
+        # This will print the attributes names of the iris.arff dataset
+        for i in meta:
+            print(i)
+        # This works too
+        meta.names()
+        # Getting attribute type
+        types = meta.types()
+
+    Methods
+    -------
+    names
+    types
+
+    Notes
+    -----
+    Also maintains the list of attributes in order, i.e., doing for i in
+    meta, where meta is an instance of MetaData, will return the
+    different attribute names in the order they were defined.
+    """
+    def __init__(self, rel, attr):
+        self.name = rel
+        self._attributes = {a.name: a for a in attr}
+
+    def __repr__(self):
+        msg = ""
+        msg += "Dataset: %s\n" % self.name
+        for i in self._attributes:
+            msg += f"\t{i}'s type is {self._attributes[i].type_name}"
+            if self._attributes[i].range:
+                msg += ", range is %s" % str(self._attributes[i].range)
+            msg += '\n'
+        return msg
+
+    def __iter__(self):
+        return iter(self._attributes)
+
+    def __getitem__(self, key):
+        attr = self._attributes[key]
+
+        return (attr.type_name, attr.range)
+
+    def names(self):
+        """Return the list of attribute names.
+
+        Returns
+        -------
+        attrnames : list of str
+            The attribute names.
+        """
+        return list(self._attributes)
+
+    def types(self):
+        """Return the list of attribute types.
+
+        Returns
+        -------
+        attr_types : list of str
+            The attribute types.
+        """
+        attr_types = [self._attributes[name].type_name
+                      for name in self._attributes]
+        return attr_types
+
+
+def loadarff(f):
+    """
+    Read an arff file.
+
+    The data is returned as a record array, which can be accessed much like
+    a dictionary of NumPy arrays. For example, if one of the attributes is
+    called 'pressure', then its first 10 data points can be accessed from the
+    ``data`` record array like so: ``data['pressure'][0:10]``
+
+
+    Parameters
+    ----------
+    f : file-like or str
+       File-like object to read from, or filename to open.
+
+    Returns
+    -------
+    data : record array
+       The data of the arff file, accessible by attribute names.
+    meta : `MetaData`
+       Contains information about the arff file such as name and
+       type of attributes, the relation (name of the dataset), etc.
+
+    Raises
+    ------
+    ParseArffError
+        This is raised if the given file is not ARFF-formatted.
+    NotImplementedError
+        The ARFF file has an attribute which is not supported yet.
+
+    Notes
+    -----
+
+    This function should be able to read most arff files. Not
+    implemented functionality include:
+
+    * date type attributes
+    * string type attributes
+
+    It can read files with numeric and nominal attributes. It cannot read
+    files with sparse data ({} in the file). However, this function can
+    read files with missing data (? in the file), representing the data
+    points as NaNs.
+
+    Examples
+    --------
+    >>> from scipy.io import arff
+    >>> from io import StringIO
+    >>> content = \"\"\"
+    ... @relation foo
+    ... @attribute width  numeric
+    ... @attribute height numeric
+    ... @attribute color  {red,green,blue,yellow,black}
+    ... @data
+    ... 5.0,3.25,blue
+    ... 4.5,3.75,green
+    ... 3.0,4.00,red
+    ... \"\"\"
+    >>> f = StringIO(content)
+    >>> data, meta = arff.loadarff(f)
+    >>> data
+    array([(5.0, 3.25, 'blue'), (4.5, 3.75, 'green'), (3.0, 4.0, 'red')],
+          dtype=[('width', '<f8'), ('height', '<f8'), ('color', '|S6')])
+    >>> meta
+    Dataset: foo
+    \twidth's type is numeric
+    \theight's type is numeric
+    \tcolor's type is nominal, range is ('red', 'green', 'blue', 'yellow', 'black')
+
+    """
+    if hasattr(f, 'read'):
+        ofile = f
+    else:
+        ofile = open(f)
+    try:
+        return _loadarff(ofile)
+    finally:
+        if ofile is not f:  # only close what we opened
+            ofile.close()
+
+
+def _loadarff(ofile):
+    # Parse the header file
+    try:
+        rel, attr = read_header(ofile)
+    except ValueError as e:
+        msg = "Error while parsing header, error was: " + str(e)
+        raise ParseArffError(msg) from e
+
+    # Check whether we have a string attribute (not supported yet)
+    hasstr = False
+    for a in attr:
+        if isinstance(a, StringAttribute):
+            hasstr = True
+
+    meta = MetaData(rel, attr)
+
+    # XXX The following code is not great
+    # Build the type descriptor descr and the list of converters to convert
+    # each attribute to the suitable type (which should match the one in
+    # descr).
+
+    # This can be used once we want to support integer as integer values and
+    # not as numeric anymore (using masked arrays ?).
+
+    if hasstr:
+        # How to support string efficiently ? Ideally, we should know the max
+        # size of the string before allocating the numpy array.
+        raise NotImplementedError("String attributes not supported yet, sorry")
+
+    ni = len(attr)
+
+    def generator(row_iter, delim=','):
+        # TODO: this is where we are spending time (~80%). I think things
+        # could be made more efficiently:
+        #   - We could for example "compile" the function, because some values
+        #   do not change here.
+        #   - The function to convert a line to dtyped values could also be
+        #   generated on the fly from a string and be executed instead of
+        #   looping.
+        #   - The regex are overkill: for comments, checking that a line starts
+        #   by % should be enough and faster, and for empty lines, same thing
+        #   --> this does not seem to change anything.
+
+        # 'compiling' the range since it does not change
+        # Note, I have already tried zipping the converters and
+        # row elements and got slightly worse performance.
+        elems = list(range(ni))
+
+        dialect = None
+        for raw in row_iter:
+            # We do not abstract skipping comments and empty lines for
+            # performance reasons.
+            if r_comment.match(raw) or r_empty.match(raw):
+                continue
+
+            row, dialect = split_data_line(raw, dialect)
+
+            yield tuple([attr[i].parse_data(row[i]) for i in elems])
+
+    a = list(generator(ofile))
+    # No error should happen here: it is a bug otherwise
+    data = np.array(a, [(a.name, a.dtype) for a in attr])
+    return data, meta
+
+
+# ----
+# Misc
+# ----
+def basic_stats(data):
+    nbfac = data.size * 1. / (data.size - 1)
+    return np.nanmin(data), np.nanmax(data), np.mean(data), np.std(data) * nbfac
+
+
+def print_attribute(name, tp, data):
+    type = tp.type_name
+    if type == 'numeric' or type == 'real' or type == 'integer':
+        min, max, mean, std = basic_stats(data)
+        print(f"{name},{type},{min:f},{max:f},{mean:f},{std:f}")
+    else:
+        print(str(tp))
+
+
+def test_weka(filename):
+    data, meta = loadarff(filename)
+    print(len(data.dtype))
+    print(data.size)
+    for i in meta:
+        print_attribute(i, meta[i], data[i])
+
+
+# make sure nose does not find this as a test
+test_weka.__test__ = False
+
+
+if __name__ == '__main__':
+    import sys
+    filename = sys.argv[1]
+    test_weka(filename)

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/arffread.py

@@ -0,0 +1,28 @@
+# This file is not meant for public use and will be removed in SciPy v2.0.0.
+# Use the `scipy.io.arff` namespace for importing the functions
+# included below.
+
+from scipy._lib.deprecation import _sub_module_deprecation
+
+__all__ = [  # noqa: F822
+    'MetaData', 'loadarff', 'ArffError', 'ParseArffError',
+    'r_meta', 'r_comment', 'r_empty', 'r_headerline',
+    'r_datameta', 'r_relation', 'r_attribute', 'r_nominal',
+    'r_date', 'r_comattrval', 'r_wcomattrval', 'Attribute',
+    'NominalAttribute', 'NumericAttribute', 'StringAttribute',
+    'DateAttribute', 'RelationalAttribute', 'to_attribute',
+    'csv_sniffer_has_bug_last_field', 'workaround_csv_sniffer_bug_last_field',
+    'split_data_line', 'tokenize_attribute', 'tokenize_single_comma',
+    'tokenize_single_wcomma', 'read_relational_attribute', 'read_header',
+    'basic_stats', 'print_attribute', 'test_weka'
+]
+
+
+def __dir__():
+    return __all__
+
+
+def __getattr__(name):
+    return _sub_module_deprecation(sub_package="io.arff", module="arffread",
+                                   private_modules=["_arffread"], all=__all__,
+                                   attribute=name)

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/iris.arff

@@ -0,0 +1,225 @@
+% 1. Title: Iris Plants Database
+% 
+% 2. Sources:
+%      (a) Creator: R.A. Fisher
+%      (b) Donor: Michael Marshall (MARSHALL%[email protected])
+%      (c) Date: July, 1988
+% 
+% 3. Past Usage:
+%    - Publications: too many to mention!!!  Here are a few.
+%    1. Fisher,R.A. "The use of multiple measurements in taxonomic problems"
+%       Annual Eugenics, 7, Part II, 179-188 (1936); also in "Contributions
+%       to Mathematical Statistics" (John Wiley, NY, 1950).
+%    2. Duda,R.O., & Hart,P.E. (1973) Pattern Classification and Scene Analysis.
+%       (Q327.D83) John Wiley & Sons.  ISBN 0-471-22361-1.  See page 218.
+%    3. Dasarathy, B.V. (1980) "Nosing Around the Neighborhood: A New System
+%       Structure and Classification Rule for Recognition in Partially Exposed
+%       Environments".  IEEE Transactions on Pattern Analysis and Machine
+%       Intelligence, Vol. PAMI-2, No. 1, 67-71.
+%       -- Results:
+%          -- very low misclassification rates (0% for the setosa class)
+%    4. Gates, G.W. (1972) "The Reduced Nearest Neighbor Rule".  IEEE 
+%       Transactions on Information Theory, May 1972, 431-433.
+%       -- Results:
+%          -- very low misclassification rates again
+%    5. See also: 1988 MLC Proceedings, 54-64.  Cheeseman et al's AUTOCLASS II
+%       conceptual clustering system finds 3 classes in the data.
+% 
+% 4. Relevant Information:
+%    --- This is perhaps the best known database to be found in the pattern
+%        recognition literature.  Fisher's paper is a classic in the field
+%        and is referenced frequently to this day.  (See Duda & Hart, for
+%        example.)  The data set contains 3 classes of 50 instances each,
+%        where each class refers to a type of iris plant.  One class is
+%        linearly separable from the other 2; the latter are NOT linearly
+%        separable from each other.
+%    --- Predicted attribute: class of iris plant.
+%    --- This is an exceedingly simple domain.
+% 
+% 5. Number of Instances: 150 (50 in each of three classes)
+% 
+% 6. Number of Attributes: 4 numeric, predictive attributes and the class
+% 
+% 7. Attribute Information:
+%    1. sepal length in cm
+%    2. sepal width in cm
+%    3. petal length in cm
+%    4. petal width in cm
+%    5. class: 
+%       -- Iris Setosa
+%       -- Iris Versicolour
+%       -- Iris Virginica
+% 
+% 8. Missing Attribute Values: None
+% 
+% Summary Statistics:
+%  	           Min  Max   Mean    SD   Class Correlation
+%    sepal length: 4.3  7.9   5.84  0.83    0.7826   
+%     sepal width: 2.0  4.4   3.05  0.43   -0.4194
+%    petal length: 1.0  6.9   3.76  1.76    0.9490  (high!)
+%     petal width: 0.1  2.5   1.20  0.76    0.9565  (high!)
+% 
+% 9. Class Distribution: 33.3% for each of 3 classes.
+
+@RELATION iris
+
+@ATTRIBUTE sepallength	REAL
+@ATTRIBUTE sepalwidth 	REAL
+@ATTRIBUTE petallength 	REAL
+@ATTRIBUTE petalwidth	REAL
+@ATTRIBUTE class 	{Iris-setosa,Iris-versicolor,Iris-virginica}
+
+@DATA
+5.1,3.5,1.4,0.2,Iris-setosa
+4.9,3.0,1.4,0.2,Iris-setosa
+4.7,3.2,1.3,0.2,Iris-setosa
+4.6,3.1,1.5,0.2,Iris-setosa
+5.0,3.6,1.4,0.2,Iris-setosa
+5.4,3.9,1.7,0.4,Iris-setosa
+4.6,3.4,1.4,0.3,Iris-setosa
+5.0,3.4,1.5,0.2,Iris-setosa
+4.4,2.9,1.4,0.2,Iris-setosa
+4.9,3.1,1.5,0.1,Iris-setosa
+5.4,3.7,1.5,0.2,Iris-setosa
+4.8,3.4,1.6,0.2,Iris-setosa
+4.8,3.0,1.4,0.1,Iris-setosa
+4.3,3.0,1.1,0.1,Iris-setosa
+5.8,4.0,1.2,0.2,Iris-setosa
+5.7,4.4,1.5,0.4,Iris-setosa
+5.4,3.9,1.3,0.4,Iris-setosa
+5.1,3.5,1.4,0.3,Iris-setosa
+5.7,3.8,1.7,0.3,Iris-setosa
+5.1,3.8,1.5,0.3,Iris-setosa
+5.4,3.4,1.7,0.2,Iris-setosa
+5.1,3.7,1.5,0.4,Iris-setosa
+4.6,3.6,1.0,0.2,Iris-setosa
+5.1,3.3,1.7,0.5,Iris-setosa
+4.8,3.4,1.9,0.2,Iris-setosa
+5.0,3.0,1.6,0.2,Iris-setosa
+5.0,3.4,1.6,0.4,Iris-setosa
+5.2,3.5,1.5,0.2,Iris-setosa
+5.2,3.4,1.4,0.2,Iris-setosa
+4.7,3.2,1.6,0.2,Iris-setosa
+4.8,3.1,1.6,0.2,Iris-setosa
+5.4,3.4,1.5,0.4,Iris-setosa
+5.2,4.1,1.5,0.1,Iris-setosa
+5.5,4.2,1.4,0.2,Iris-setosa
+4.9,3.1,1.5,0.1,Iris-setosa
+5.0,3.2,1.2,0.2,Iris-setosa
+5.5,3.5,1.3,0.2,Iris-setosa
+4.9,3.1,1.5,0.1,Iris-setosa
+4.4,3.0,1.3,0.2,Iris-setosa
+5.1,3.4,1.5,0.2,Iris-setosa
+5.0,3.5,1.3,0.3,Iris-setosa
+4.5,2.3,1.3,0.3,Iris-setosa
+4.4,3.2,1.3,0.2,Iris-setosa
+5.0,3.5,1.6,0.6,Iris-setosa
+5.1,3.8,1.9,0.4,Iris-setosa
+4.8,3.0,1.4,0.3,Iris-setosa
+5.1,3.8,1.6,0.2,Iris-setosa
+4.6,3.2,1.4,0.2,Iris-setosa
+5.3,3.7,1.5,0.2,Iris-setosa
+5.0,3.3,1.4,0.2,Iris-setosa
+7.0,3.2,4.7,1.4,Iris-versicolor
+6.4,3.2,4.5,1.5,Iris-versicolor
+6.9,3.1,4.9,1.5,Iris-versicolor
+5.5,2.3,4.0,1.3,Iris-versicolor
+6.5,2.8,4.6,1.5,Iris-versicolor
+5.7,2.8,4.5,1.3,Iris-versicolor
+6.3,3.3,4.7,1.6,Iris-versicolor
+4.9,2.4,3.3,1.0,Iris-versicolor
+6.6,2.9,4.6,1.3,Iris-versicolor
+5.2,2.7,3.9,1.4,Iris-versicolor
+5.0,2.0,3.5,1.0,Iris-versicolor
+5.9,3.0,4.2,1.5,Iris-versicolor
+6.0,2.2,4.0,1.0,Iris-versicolor
+6.1,2.9,4.7,1.4,Iris-versicolor
+5.6,2.9,3.6,1.3,Iris-versicolor
+6.7,3.1,4.4,1.4,Iris-versicolor
+5.6,3.0,4.5,1.5,Iris-versicolor
+5.8,2.7,4.1,1.0,Iris-versicolor
+6.2,2.2,4.5,1.5,Iris-versicolor
+5.6,2.5,3.9,1.1,Iris-versicolor
+5.9,3.2,4.8,1.8,Iris-versicolor
+6.1,2.8,4.0,1.3,Iris-versicolor
+6.3,2.5,4.9,1.5,Iris-versicolor
+6.1,2.8,4.7,1.2,Iris-versicolor
+6.4,2.9,4.3,1.3,Iris-versicolor
+6.6,3.0,4.4,1.4,Iris-versicolor
+6.8,2.8,4.8,1.4,Iris-versicolor
+6.7,3.0,5.0,1.7,Iris-versicolor
+6.0,2.9,4.5,1.5,Iris-versicolor
+5.7,2.6,3.5,1.0,Iris-versicolor
+5.5,2.4,3.8,1.1,Iris-versicolor
+5.5,2.4,3.7,1.0,Iris-versicolor
+5.8,2.7,3.9,1.2,Iris-versicolor
+6.0,2.7,5.1,1.6,Iris-versicolor
+5.4,3.0,4.5,1.5,Iris-versicolor
+6.0,3.4,4.5,1.6,Iris-versicolor
+6.7,3.1,4.7,1.5,Iris-versicolor
+6.3,2.3,4.4,1.3,Iris-versicolor
+5.6,3.0,4.1,1.3,Iris-versicolor
+5.5,2.5,4.0,1.3,Iris-versicolor
+5.5,2.6,4.4,1.2,Iris-versicolor
+6.1,3.0,4.6,1.4,Iris-versicolor
+5.8,2.6,4.0,1.2,Iris-versicolor
+5.0,2.3,3.3,1.0,Iris-versicolor
+5.6,2.7,4.2,1.3,Iris-versicolor
+5.7,3.0,4.2,1.2,Iris-versicolor
+5.7,2.9,4.2,1.3,Iris-versicolor
+6.2,2.9,4.3,1.3,Iris-versicolor
+5.1,2.5,3.0,1.1,Iris-versicolor
+5.7,2.8,4.1,1.3,Iris-versicolor
+6.3,3.3,6.0,2.5,Iris-virginica
+5.8,2.7,5.1,1.9,Iris-virginica
+7.1,3.0,5.9,2.1,Iris-virginica
+6.3,2.9,5.6,1.8,Iris-virginica
+6.5,3.0,5.8,2.2,Iris-virginica
+7.6,3.0,6.6,2.1,Iris-virginica
+4.9,2.5,4.5,1.7,Iris-virginica
+7.3,2.9,6.3,1.8,Iris-virginica
+6.7,2.5,5.8,1.8,Iris-virginica
+7.2,3.6,6.1,2.5,Iris-virginica
+6.5,3.2,5.1,2.0,Iris-virginica
+6.4,2.7,5.3,1.9,Iris-virginica
+6.8,3.0,5.5,2.1,Iris-virginica
+5.7,2.5,5.0,2.0,Iris-virginica
+5.8,2.8,5.1,2.4,Iris-virginica
+6.4,3.2,5.3,2.3,Iris-virginica
+6.5,3.0,5.5,1.8,Iris-virginica
+7.7,3.8,6.7,2.2,Iris-virginica
+7.7,2.6,6.9,2.3,Iris-virginica
+6.0,2.2,5.0,1.5,Iris-virginica
+6.9,3.2,5.7,2.3,Iris-virginica
+5.6,2.8,4.9,2.0,Iris-virginica
+7.7,2.8,6.7,2.0,Iris-virginica
+6.3,2.7,4.9,1.8,Iris-virginica
+6.7,3.3,5.7,2.1,Iris-virginica
+7.2,3.2,6.0,1.8,Iris-virginica
+6.2,2.8,4.8,1.8,Iris-virginica
+6.1,3.0,4.9,1.8,Iris-virginica
+6.4,2.8,5.6,2.1,Iris-virginica
+7.2,3.0,5.8,1.6,Iris-virginica
+7.4,2.8,6.1,1.9,Iris-virginica
+7.9,3.8,6.4,2.0,Iris-virginica
+6.4,2.8,5.6,2.2,Iris-virginica
+6.3,2.8,5.1,1.5,Iris-virginica
+6.1,2.6,5.6,1.4,Iris-virginica
+7.7,3.0,6.1,2.3,Iris-virginica
+6.3,3.4,5.6,2.4,Iris-virginica
+6.4,3.1,5.5,1.8,Iris-virginica
+6.0,3.0,4.8,1.8,Iris-virginica
+6.9,3.1,5.4,2.1,Iris-virginica
+6.7,3.1,5.6,2.4,Iris-virginica
+6.9,3.1,5.1,2.3,Iris-virginica
+5.8,2.7,5.1,1.9,Iris-virginica
+6.8,3.2,5.9,2.3,Iris-virginica
+6.7,3.3,5.7,2.5,Iris-virginica
+6.7,3.0,5.2,2.3,Iris-virginica
+6.3,2.5,5.0,1.9,Iris-virginica
+6.5,3.0,5.2,2.0,Iris-virginica
+6.2,3.4,5.4,2.3,Iris-virginica
+5.9,3.0,5.1,1.8,Iris-virginica
+%
+%
+%

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/missing.arff

@@ -0,0 +1,8 @@
+% This arff file contains some missing data
+@relation missing
+@attribute yop real
+@attribute yap real
+@data
+1,5
+2,4
+?,?

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/nodata.arff

@@ -0,0 +1,11 @@
+@RELATION iris
+
+@ATTRIBUTE sepallength  REAL
+@ATTRIBUTE sepalwidth   REAL
+@ATTRIBUTE petallength  REAL
+@ATTRIBUTE petalwidth   REAL
+@ATTRIBUTE class    {Iris-setosa,Iris-versicolor,Iris-virginica}
+
+@DATA
+
+% This file has no data

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/quoted_nominal.arff

@@ -0,0 +1,13 @@
+% Regression test for issue #10232 : Exception in loadarff with quoted nominal attributes
+% Spaces between elements are stripped by the parser
+
+@relation SOME_DATA
+@attribute age numeric
+@attribute smoker {'yes', 'no'}
+@data
+18,  'no'
+24, 'yes'
+44,     'no'
+56, 'no'
+89,'yes'
+11,  'no'

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/quoted_nominal_spaces.arff

@@ -0,0 +1,13 @@
+% Regression test for issue #10232 : Exception in loadarff with quoted nominal attributes
+% Spaces inside quotes are NOT stripped by the parser
+
+@relation SOME_DATA
+@attribute age numeric
+@attribute smoker {'  yes', 'no  '}
+@data
+18,'no  '
+24,'  yes'
+44,'no  '
+56,'no  '
+89,'  yes'
+11,'no  '

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test1.arff

@@ -0,0 +1,10 @@
+@RELATION test1
+
+@ATTRIBUTE attr0	REAL
+@ATTRIBUTE attr1 	REAL
+@ATTRIBUTE attr2 	REAL
+@ATTRIBUTE attr3	REAL
+@ATTRIBUTE class 	{class0, class1, class2, class3}
+
+@DATA
+0.1, 0.2, 0.3, 0.4,class1

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test11.arff

@@ -0,0 +1,11 @@
+@RELATION test11
+
+@ATTRIBUTE attr0	REAL
+@ATTRIBUTE attr1 	REAL
+@ATTRIBUTE attr2 	REAL
+@ATTRIBUTE attr3	REAL
+@ATTRIBUTE class 	{ class0, class1, class2, class3 }
+@DATA
+0.1, 0.2, 0.3, 0.4,class1
+-0.1, -0.2, -0.3, -0.4,class2
+1, 2, 3, 4,class3

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test2.arff

@@ -0,0 +1,15 @@
+@RELATION test2
+
+@ATTRIBUTE attr0	REAL
+@ATTRIBUTE attr1 	real
+@ATTRIBUTE attr2 	integer
+@ATTRIBUTE attr3	Integer
+@ATTRIBUTE attr4 	Numeric
+@ATTRIBUTE attr5	numeric
+@ATTRIBUTE attr6 	string
+@ATTRIBUTE attr7 	STRING
+@ATTRIBUTE attr8 	{bla}
+@ATTRIBUTE attr9 	{bla, bla}
+
+@DATA
+0.1, 0.2, 0.3, 0.4,class1

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test3.arff

@@ -0,0 +1,6 @@
+@RELATION test3
+
+@ATTRIBUTE attr0	crap
+
+@DATA
+0.1, 0.2, 0.3, 0.4,class1

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test4.arff

@@ -0,0 +1,11 @@
+@RELATION test5
+
+@ATTRIBUTE attr0	REAL
+@ATTRIBUTE attr1 	REAL
+@ATTRIBUTE attr2 	REAL
+@ATTRIBUTE attr3	REAL
+@ATTRIBUTE class 	{class0, class1, class2, class3}
+@DATA
+0.1, 0.2, 0.3, 0.4,class1
+-0.1, -0.2, -0.3, -0.4,class2
+1, 2, 3, 4,class3

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test5.arff

@@ -0,0 +1,26 @@
+@RELATION test4
+
+@ATTRIBUTE attr0	REAL
+@ATTRIBUTE attr1 	REAL
+@ATTRIBUTE attr2 	REAL
+@ATTRIBUTE attr3	REAL
+@ATTRIBUTE class 	{class0, class1, class2, class3}
+
+@DATA
+
+% lsdflkjhaksjdhf
+
+% lsdflkjhaksjdhf
+
+0.1, 0.2, 0.3, 0.4,class1
+% laksjdhf
+
+% lsdflkjhaksjdhf
+-0.1, -0.2, -0.3, -0.4,class2
+
+% lsdflkjhaksjdhf
+% lsdflkjhaksjdhf
+
+% lsdflkjhaksjdhf
+
+1, 2, 3, 4,class3

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test6.arff

@@ -0,0 +1,12 @@
+@RELATION test6
+
+@ATTRIBUTE attr0	REAL
+@ATTRIBUTE attr1 	REAL
+@ATTRIBUTE attr2 	REAL
+@ATTRIBUTE attr3	REAL
+@ATTRIBUTE class 	{C}
+
+@DATA
+0.1, 0.2, 0.3, 0.4,C
+-0.1, -0.2, -0.3, -0.4,C
+1, 2, 3, 4,C

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test7.arff

@@ -0,0 +1,15 @@
+@RELATION test7
+
+@ATTRIBUTE attr_year	DATE yyyy
+@ATTRIBUTE attr_month	DATE yyyy-MM
+@ATTRIBUTE attr_date	DATE yyyy-MM-dd
+@ATTRIBUTE attr_datetime_local	DATE "yyyy-MM-dd HH:mm"
+@ATTRIBUTE attr_datetime_missing	DATE "yyyy-MM-dd HH:mm"
+
+@DATA
+1999,1999-01,1999-01-31,"1999-01-31 00:01",?
+2004,2004-12,2004-12-01,"2004-12-01 23:59","2004-12-01 23:59"
+1817,1817-04,1817-04-28,"1817-04-28 13:00",?
+2100,2100-09,2100-09-10,"2100-09-10 12:00",?
+2013,2013-11,2013-11-30,"2013-11-30 04:55","2013-11-30 04:55"
+1631,1631-10,1631-10-15,"1631-10-15 20:04","1631-10-15 20:04"

env-llmeval/lib/python3.10/site-packages/scipy/io/arff/tests/data/test8.arff

@@ -0,0 +1,12 @@
+@RELATION test8
+
+@ATTRIBUTE attr_datetime_utc	DATE "yyyy-MM-dd HH:mm Z"
+@ATTRIBUTE attr_datetime_full	DATE "yy-MM-dd HH:mm:ss z"
+
+@DATA
+"1999-01-31 00:01 UTC","99-01-31 00:01:08 +0430"
+"2004-12-01 23:59 UTC","04-12-01 23:59:59 -0800"
+"1817-04-28 13:00 UTC","17-04-28 13:00:33 +1000"
+"2100-09-10 12:00 UTC","21-09-10 12:00:21 -0300"
+"2013-11-30 04:55 UTC","13-11-30 04:55:48 -1100"
+"1631-10-15 20:04 UTC","31-10-15 20:04:10 +0000"