loglognormal_dlog

zdm.pcosmic.loglognormal_dlog(logDM, *args)[source]

Gaussian probability density in log DM space.

This is simply a Gaussian distribution where the variable happens to be log(DM). Does not include Jacobian for log-to-linear conversion.

Parameters:

  • logDM (float or array_like) – Natural log of dispersion measure.

  • *args (tuple) – (logmean, logsigma, norm) - Gaussian parameters in log space.

Returns:

Probability density p(log DM) such that integral p(log DM) d(log DM) = 1.

Return type:

float or ndarray