Random Altair Chart Generator

This function generates a random type of Altair chart based on the provided data. It supports bar, line, area, point, rule, interval, and text charts. Depending on the chart type, it can add color encoding and x, y axis encoding.

Technology Stack : Altair, Python programming language

Code Type : The type of code

Code Difficulty : Advanced

                
                    
import random
import altair as alt

def random_chart(data):
    # Generate a random chart from the Altair library
    chart_type = random.choice(['bar', 'line', 'area', 'point', 'rule', 'interval', 'text'])
    mark = alt.Chart(data).mark[chart_type]()
    
    if chart_type in ['bar', 'line', 'area', 'point', 'rule']:
        # For these types, we can add a color encoding
        mark = mark.encode(color=alt.Color('category', scale=alt.Scale(scheme='category10')))
    
    if chart_type in ['bar', 'line', 'area']:
        # For these types, we can add an x and y encoding
        mark = mark.encode(x=alt.X('value', title='Value'), y=alt.Y('category', title='Category'))
    
    return mark

# Example usage:
# data = alt.Data({ 'category': ['A', 'B', 'C'], 'value': [10, 20, 30] })
# chart = random_chart(data)
# print(chart)