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np.random.random vs np.random.rand

np.random.random vs np.random.rand

First note that numpy.random.random is actually an alias for numpy.random.random_sample. I’ll use the latter in the following. (See this question and answer for more aliases.)

Both functions generate samples from the uniform distribution on [0, 1). The only difference is in how the arguments are handled. With numpy.random.rand, the length of each dimension of the output array is a separate argument. With numpy.random.random_sample, the shape argument is a single tuple.

For example, to create an array of samples with shape (3, 5), you can write

sample = np.random.rand(3, 5)

or

sample = np.random.random_sample((3, 5))

Read this: What is the difference between single and double bracket Numpy array?