numpy.random.rand

numpy.random.rand(d0, d1, ..., dn)

Random values in a given shape.

Create an array of the given shape and populate it with random samples from a uniform distribution over [0, 1).

Parameters:	d0, d1, ..., dn : int, optional The dimensions of the returned array, should all be positive. If no argument is given a single Python float is returned.
Returns:	out : ndarray, shape (d0, d1, ..., dn) Random values.

 

import numpy as np

np.random.rand(n,m)

　　

[Python] numpy.random.rand

原文：http://www.cnblogs.com/KennyRom/p/6607799.html