mtalg.random.standard_exponential

standard_exponential(size: int | tuple | None = None, dtype=<class 'numpy.float64'>, method: str = 'zig') → ndarray | Number[source]

Draw from a standard exponential distribution.

Parameters:

  • size – Output shape.

  • dtype – Dtype of output array.

  • method – Either ‘inv’ or ‘zig’. ‘inv’ uses the inverse CDF method. ‘zig’ uses the much faster Ziggurat method of Marsaglia and Tsang.

Returns:

numpy.ndarray or scalar.