# cupy.random.lognormal¶

cupy.random.lognormal(mean=0.0, sigma=1.0, size=None, dtype=<class 'float'>)[source]

Returns an array of samples drawn from a log normal distribution.

The samples are natural log of samples drawn from a normal distribution with mean mean and deviation sigma.

Parameters
• mean (float) – Mean of the normal distribution.

• sigma (float) – Standard deviation of the normal distribution.

• 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 and numpy.float64 types are allowed.

Returns

Samples drawn from the log normal distribution.

Return type

cupy.ndarray

numpy.random.lognormal