Random Chart Generation with Altair and Pandas

This custom function generates random Altair charts based on the input DataFrame, including bar charts, line charts, area charts, scatter plots, and more. The function first randomly selects a chart type and then selects a mark type, and uses the Altair library to create the chart.

Technology Stack : Altair, Pandas

Code Type : Custom function

Code Difficulty : Intermediate

                
                    
import altair as alt
import pandas as pd
import random

def generate_random_chart(dataframe):
    # Randomly select a chart type
    chart_types = ["bar", "line", "area", "scatter", "circle", "square", "triangle", "diamond"]
    chart_type = random.choice(chart_types)
    
    # Randomly select a mark type for the chart
    mark_types = ["circle", "square", "triangle", "cross", "x", "diamond", "plus", "minus", "none"]
    mark_type = random.choice(mark_types)
    
    # Create the chart based on the randomly selected type and mark
    chart = alt.Chart(dataframe).mark_$(mark_type).encode(
        alt.X('column:O', title='X Axis'),
        alt.Y('value:Q', title='Y Axis')
    ).type(chart_type)
    
    return chart

# Example usage
data = pd.DataFrame({
    'column': ['A', 'B', 'C', 'D'],
    'value': [10, 20, 15, 5]
})

chart = generate_random_chart(data)
chart.display()