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Chi Square Distribution


Chi Square Distribution

Chi Square distribution is used as a basis to verify the hypothesis.

It has two parameters:

df - (degree of freedom).

size - The shape of the returned array.

Example

Draw out a sample for chi squared distribution with degree of freedom 2 with size 2x3:

from numpy import random

x = random.chisquare(df=2, size=(2, 3))

print(x)
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Visualization of Chi Square Distribution

Example

from numpy import random
import matplotlib.pyplot as plt
import seaborn as sns

sns.distplot(random.chisquare(df=1, size=1000), hist=False)

plt.show()

Result

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