CODEWITHSUNDEEP
pythonrandom
Nathan Fellman
Nathan Fellman

Reputation: 127428

How can I generate random numbers in Python?

Are there any built-in libraries in Python or Numpy to generate random numbers based on various common distributions, such as:

And various others?

Are there any such libraries with multi-variate distributions?

Upvotes: 13

Views: 11189

Answers (2)

unutbu
unutbu

Reputation: 879481

#!/usr/bin/env python
from scipy.stats import bernoulli,poisson,norm,expon

bernoulli, poisson, norm, expon and many others are documented here 

print(norm.rvs(size=30))
print(bernoulli.rvs(.3,size=30))
print(poisson.rvs(1,2,size=30))
print(expon.rvs(5,size=30))

All the distributions defined in scipy.stats have a common interface to the pdf, cdf, rvs (random variates). More info here.

Upvotes: 28

Ned Batchelder
Ned Batchelder

Reputation: 375574

The random module has tons of functions for generating random numbers in lots of way. Not sure it has multi-variate.

Numpy.random would be the next place to look.

Upvotes: 5

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