cupy.random.wald¶
-
cupy.random.
wald
(mean, scale, size=None, dtype=<class 'float'>)[source]¶ Wald distribution.
Returns an array of samples drawn from the Wald distribution. Its probability density function is defined as
\[f(x) = \sqrt{\frac{\lambda}{2\pi x^3}}\ e^{\frac{-\lambda(x-\mu)^2}{2\mu^2x}}.\]Parameters: - mean (float) – Parameter of the wald distribution \(\mu\).
- scale (float) – Parameter of the wald distribution \(\lambda\).
- size (int or tuple of ints) – The shape of the array. If
None
, a zero-dimensional array is generated. - dtype – Data type specifier. Only
numpy.float32
andnumpy.float64
types are allowed.
Returns: Samples drawn from the wald distribution.
Return type: See also
cupy.random.RandomState.wald()
numpy.random.wald