cuqi.distribution.Normal.logd

Normal.logd(*args, **kwargs)

Evaluate the un-normalized log density function of the distribution.

The log density function is equal to the log probability density function (logpdf) of a distribution plus an additive constant.

It is possible to pass conditioning variables as arguments to this function in addition to the parameters of the distribution.

All distributions are required to implement an un-normalized log density function, but not required implement the log probability density function (logpdf). For MCMC sampling, the log density function is used to sample from the distribution for efficient sampling.