# numpy.random.RandomState.random_sample

method

random.RandomState.random_sample(size=None)

  Return random floats in the half-open interval [0.0, 1.0).

  Results are from the “continuous uniform” distribution over the stated interval. To sample \(Unif[a, b), b > a\) multiply the output of `random_sample` by (b-a) and add a:

      (b - a) * random_sample() + a

  Note

  New code should use the `random` method of a `default_rng()` instance instead; please see the Quick Start.

  Parameters
    size int or tuple of ints, optional

      Output shape. If the given shape is, e.g., `(m, n, k)`, then `m * n * k` samples are drawn. Default is None, in which case a single value is returned.

  Returns
    out float or ndarray of floats

      Array of random floats of shape `size` (unless `size=None`, in which case a single float is returned).

  See also

  `Generator.random`

    which should be used for new code.

  Examples

      >>> np.random.random_sample()
      0.47108547995356098 # random
      >>> type(np.random.random_sample())
      <class 'float'>
      >>> np.random.random_sample((5,))
      array([ 0.30220482,  0.86820401,  0.1654503 ,  0.11659149,  0.54323428]) # random

  Three-by-two array of random numbers from [-5, 0):

      >>> 5 * np.random.random_sample((3, 2)) - 5
      array([[-3.99149989, -0.52338984], # random
             [-2.99091858, -0.79479508],
             [-1.23204345, -1.75224494]])

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