Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,33 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
 
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+def calculate_bmi(weight, height):
+    """Calculate BMI using the formula: weight (kg) / (height (m) ^ 2)."""
+    return weight / (height ** 2)
+def classify_bmi(bmi):
+    """Classify BMI into categories."""
+    if bmi < 18.5:
+        return "Underweight"
+    elif 18.5 <= bmi < 24.9:
+        return "Normal weight"
+    elif 25 <= bmi < 29.9:
+        return "Overweight"
+    else:
+        return "Obesity"
+# Streamlit UI
+st.set_page_config(page_title="BMI Calculator", page_icon="⚖️", layout="centered")
+st.title("BMI Calculator")
+st.write("Use this app to calculate your Body Mass Index (BMI) and understand your health status.")
+# Input fields
+st.sidebar.header("Input Your Details")
+weight = st.sidebar.number_input("Enter your weight (kg):", min_value=1.0, step=0.1, format="%.1f")
+height = st.sidebar.number_input("Enter your height (m):", min_value=0.1, step=0.01, format="%.2f")
+if st.sidebar.button("Calculate BMI"):
+    if height > 0:
+        bmi = calculate_bmi(weight, height)
+        category = classify_bmi(bmi)
+        st.success(f"Your BMI is: {bmi:.2f}")
+        st.info(f"Category: {category}")
+    else:
+        st.error("Height must be greater than 0.")
+else:
+    st.write("Enter your details in the sidebar and click 'Calculate BMI' to see the results.")