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Update app.py
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app.py
CHANGED
@@ -49,18 +49,34 @@ explainer = shap.KernelExplainer(_predict_proba_nd, bg_array)
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def _render_force_plot(base_val: float, shap_1d: np.ndarray, feat_1d: np.ndarray, fnames):
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"""返回 matplotlib Figure(旧接口,服务器端稳定)"""
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plt.close('all')
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shap.force_plot(
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base_val,
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np.asarray(shap_1d).reshape(-1),
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np.asarray(
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feature_names=list(fnames),
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matplotlib=True,
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)
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fig = plt.gcf()
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fig.set_size_inches(
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return fig
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def _coerce_float(x):
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return float(x) if x is not None and x != "" else np.nan
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def _render_force_plot(base_val: float, shap_1d: np.ndarray, feat_1d: np.ndarray, fnames):
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"""返回 matplotlib Figure(旧接口,服务器端稳定)"""
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plt.close('all')
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# ——将特征值按需四舍五入,减少标签长度(可根据需要微调每列小数位)
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feat = np.asarray(feat_1d, dtype=float).copy()
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# 这里给出一套通用规则:ALB/TP/CREA/PNI 一位小数;TBA 两位;AST_ALT 与 AAPR 两位
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round_map = {
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"ALB": 2, "TP": 2, "TBA": 2, "AST_ALT": 2, "CREA": 1, "PNI": 1, "AAPR": 3
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}
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feat_rounded = [
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np.round(val, round_map.get(name, 2)) for val, name in zip(feat, fnames)
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]
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# 如需进一步减字,可把特征名缩写或去掉空格,这里保持原名
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shap.force_plot(
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base_val,
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np.asarray(shap_1d).reshape(-1),
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np.asarray(feat_rounded).reshape(-1),
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feature_names=list(fnames),
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matplotlib=True,
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show=False
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)
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fig = plt.gcf()
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fig.set_size_inches(14, 3.6) # 加宽、适当降低高度
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fig.set_dpi(180) # 提高分辨率
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plt.tight_layout(pad=0.6) # 更紧凑
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return fig
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def _coerce_float(x):
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return float(x) if x is not None and x != "" else np.nan
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