pymc.LogitNormal — PyMC 5.22.0 documentation (original) (raw)

class pymc.LogitNormal(name, *args, rng=None, dims=None, initval=None, observed=None, total_size=None, transform=UNSET, default_transform=UNSET, **kwargs)[source]#

Logit-Normal distribution.

The pdf of this distribution is

\[f(x \mid \mu, \tau) = \frac{1}{x(1-x)} \sqrt{\frac{\tau}{2\pi}} \exp\left\{ -\frac{\tau}{2} (logit(x)-\mu)^2 \right\}\]

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Parameters:

mutensor_like of float, default 0

Location parameter.

sigmatensor_like of float, optional

Scale parameter (sigma > 0). Defaults to 1.

tautensor_like of float, optional

Scale parameter (tau > 0). Defaults to 1.

Methods