Create an application that has a text field to enter a URL (default value: https://raw.githubusercontent.com/mwaskom/seaborn-data/master/penguins.csv). The app should read the CSV file (and cache it) from the URL and display a DataFrame. Add controls to do the following: - Control how many rows are displayed - A checkbox to determine to randomly shuffle the DataFrame Users select one or two variables and you must determine the best way to visualize them.
To upload files, please first save the app
import streamlit as st
import pandas as pd
import random
@st.cache_data
def load_data(url):
return pd.read_csv(url)
# Set default URL
url = st.text_input('Enter CSV URL:', 'https://raw.githubusercontent.com/mwaskom/seaborn-data/master/penguins.csv')
# Load data
try:
df = load_data(url)
st.write('Data loaded successfully!')
except Exception as e:
st.error(f'Error loading data: {e}')
# Control for number of rows displayed
num_rows = st.number_input('Number of rows to display:', min_value=1, max_value=len(df), value=5)
# Checkbox to shuffle DataFrame
shuffle = st.checkbox('Shuffle DataFrame')
if shuffle:
df = df.sample(frac=1).reset_index(drop=True)
# Display selected rows
st.write(df.head(num_rows))
# Selecting variables
variables = df.select_dtypes(include='number').columns.tolist() # Get numeric columns
selected_var1 = st.selectbox('Select first variable to visualize:', variables)
selected_var2 = st.selectbox('Select second variable to visualize (or None):', ['None'] + variables)
# Visualization
if selected_var2 != 'None':
st.line_chart(df[[selected_var1, selected_var2]])
else:
st.bar_chart(df[selected_var1])
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