Plotting joint probability of two random variable choices

0 votes

If I have two variables, say

x = random.choices([0.25, 0.75], [25, 75])
y = random.choices([0.4, 0.6], [4, 6])

how can I plot a 2D chart of with x-axis between 0 and 1, and y-axis between 0 and 1, to show the multiplied probabilities of the two variables, in a heatmap style format?

Mar 21, 2022 in Machine Learning by Dev
• 6,000 points
1,328 views

1 answer to this question.

0 votes

Create pandas.DataFrame , you can use seaborn.jointplot to plot the joint probability.
You can play around with the kind parameter to get the plot you desire.

import random
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns

samples = 100

x = random.choices(population = [0.25, 0.75], weights = [25, 75], k = samples)
y = random.choices(population = [0.4, 0.6], weights = [4, 6], k = samples)

df = pd.DataFrame({'x': x, 'y': y})

sns.jointplot(data = df, x = 'x', y = 'y', kind = 'kde', xlim = (0, 1), ylim = (0, 1))

plt.show()

enter image description here
answered Mar 23, 2022 by Nandini
• 5,480 points

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