Poisson

greybox.distributions.dpois(q, loc, log=False)

Poisson distribution probability mass function.

Parameters:

• q (array_like) – Quantiles (non-negative integers).

• loc (float) – Mean parameter (lambda).

• log (bool) – If True, return log-probability.

Returns:

Probability mass values.

Return type:

array

greybox.distributions.ppois(q, loc)

Poisson distribution CDF.

Parameters:

• q (array_like) – Quantiles.

• loc (float) – Mean parameter.

Returns:

CDF values.

Return type:

array

greybox.distributions.qpois(p, loc)

Poisson distribution quantile function.

Parameters:

• p (array_like) – Probabilities.

• loc (float) – Mean parameter.

Returns:

Quantile values.

Return type:

array

greybox.distributions.rpois(n, loc)

Poisson distribution random number generation.

Parameters:

• n (int) – Number of observations.

• loc (float) – Mean parameter.

Returns:

Random values.

Return type:

array