Code Editor for app.py

import streamlit as st
import pandas as pd
import numpy as np

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# Create some sample data
x = np.linspace(0, 10, 100)
y = np.sin(x)

# Add some text
st.title('Simple Streamlit App')
st.write('Welcome! This is a basic demonstration of Streamlit.')

# Create tabs
tabs = st.tabs(["Sample Data", "Line Plot", "Area Chart", "Interactive Elements"])

with tabs[0]:
    st.subheader('Sample Data')
    df = pd.DataFrame({
        'x': x,
        'y': y
    })
    st.dataframe(df.head())

with tabs[1]:
    st.subheader('Line Plot')
    st.line_chart(df.set_index('x'))

with tabs[2]:
    st.subheader('Area Chart')
    st.area_chart(df.set_index('x'))

with tabs[3]:
    st.subheader('Interactive Elements')
    name = st.text_input('Enter your name')
    if name:
        st.write(f'Hello {name}!')