Code Editor for app.py

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

st.title('Data Visualizations App')

# Generate sample data
np.random.seed(42)
data = pd.DataFrame({
    'x': np.linspace(0, 10, 100),
    'y1': np.sin(np.linspace(0, 10, 100)),
    'y2': np.cos(np.linspace(0, 10, 100)),
    'y3': np.random.rand(100)
})


# Create a line chart
st.subheader('Line Chart')
st.line_chart(data[['y1', 'y2']])

# Create a scatter plot
st.subheader('Scatter Plot')
st.scatter_chart(data.set_index('x'))

# Create an area chart
st.subheader('Area Chart')
st.area_chart(data[['y1', 'y2']])

# Create a histogram
st.subheader('Histogram')
st.bar_chart(data['y3'].value_counts())