arviz-devs / preliz

A tool-box for prior elicitation.
https://preliz.readthedocs.io
Apache License 2.0
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Distribution gallery: alternative parametrization #493

Open aloctavodia opened 2 weeks ago

aloctavodia commented 2 weeks ago

@tomicapretto suggested adding a plot showing alternative parametrizations for the distribution that has it. For instance, for the Beta we have (mu and nu) and (mu and sigma).

Not sure if we should only add the pdf or also the cdf. Also not sure if we should use the same shape as for the default parametrization, so same plot different labels.

Alternatively, instead of a separated plot we could write some text showing the equivalent, something like Beta(0.5, 0.5) is equivalent to Beta(mu=0.5, sigma=0.35) and Beta(mu=0.5, nu=1).