Code Editor for app.py

import streamlit as st
import pandas as pd
import plotly.express as px

# Function to load and cache the data
@st.cache_data
def load_data(url):
    return pd.read_csv(url)

# Default URL
url = "https://raw.githubusercontent.com/mwaskom/seaborn-data/master/penguins.csv"

# Text input for the URL
url_input = st.text_input("Enter CSV URL:", value=url)

# Load data from the provided URL
try:
    data = load_data(url_input)
except Exception as e:
    st.error(f"Error loading data: {e}")
    st.stop()

# Checkbox to shuffle the data
shuffle = st.checkbox("Shuffle Data")
if shuffle:
    data = data.sample(frac=1).reset_index(drop=True)

# Control for number of rows to display
num_rows = st.slider("Select number of rows to display:", 1, len(data), 5)
# Display the DataFrame
st.subheader("DataFrame")
st.dataframe(data.head(num_rows))

# Plotting options
st.subheader("Visualize Data")
variables = data.select_dtypes(include=['float64', 'int64']).columns.tolist()
selected_vars = st.multiselect("Select one or two variables to plot:", variables)

if len(selected_vars) > 0:
    if len(selected_vars) == 1:
        fig = px.histogram(data, x=selected_vars[0])
        st.plotly_chart(fig)
    elif len(selected_vars) == 2:
        fig = px.scatter(data, x=selected_vars[0], y=selected_vars[1])
        st.plotly_chart(fig)
else:
    st.info("Please select one or two variables to visualize.")