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import gradio as gr
import rpy2.robjects as robj
from rpy2.robjects import default_converter
from rpy2.robjects.conversion import localconverter
# define R functions globally
robj.r("""
add <- function(x,y) { return(x + y) }
multiply <- function(x,y) { return(x * y) }
sub <- function(x,y) { return(x - y) }
div <- function(x,y) { return(x / y) }
""")
def arithmetic(num1, num2, operation):
with localconverter(default_converter):
if operation == "Add":
res = robj.r(f"add({num1}, {num2})")
elif operation == "Multiply":
res = robj.r(f"multiply({num1}, {num2})")
elif operation == "Subtract":
res = robj.r(f"sub({num1}, {num2})")
elif operation == "Divide":
res = robj.r(f"div({num1}, {num2})")
return res[0]
# Custom CSS for better theme
custom_css = """
body {
background-color: #121212;
color: #ffffff;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
/* Inputs and selects */
input, textarea, select {
background-color: #1e1e1e;
color: #ffffff;
border: 1px solid #555;
border-radius: 6px;
padding: 8px;
}
/* Radio buttons */
label input[type="radio"] {
accent-color: #3b82f6;
}
/* Buttons */
button {
background: linear-gradient(135deg, #3b82f6, #0f4c81);
color: white;
border: none;
border-radius: 6px;
padding: 10px 20px;
cursor: pointer;
transition: background 0.3s ease;
}
button:hover {
background: linear-gradient(135deg, #60a5fa, #2563eb);
}
/* Result field styling */
#result input {
background-color: #1e1e1e;
color: #00ffcc;
font-size: 1.5em;
border: 1px solid #444;
text-align: center;
}
/* Center heading text */
h1, h3 {
text-align: center;
color: #ffffff;
}
/* Hide footer */
footer {
display: none !important;
}
"""
with gr.Blocks(
title="R-Powered Calculator",
theme=gr.themes.Base(),
css=custom_css
) as app:
gr.HTML(
"<h1><strong>R-Powered Calculator</strong></h1>"
)
with gr.Row():
num1 = gr.Number(label="Number 1")
num2 = gr.Number(label="Number 2")
with gr.Column():
operation = gr.Radio(
choices=["Add", "Multiply", "Subtract", "Divide"],
value="Add",
label="Choose Arithmetic Operation",
min_width=100,
scale=0.3
)
with gr.Row():
submit = gr.Button("Run Operation")
with gr.Column():
gr.HTML("<h2><strong>Arithmetic Operation Result</strong></h2>")
result = gr.Number(elem_id="result")
submit.click(arithmetic, inputs=[num1, num2, operation], outputs=[result])
app.launch(server_name="0.0.0.0", server_port=7860)
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