The Posterior Object¶
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class
radvel.posterior.Posterior(likelihood)[source]¶ Posterior object
Posterior object to be sent to the fitting routines. It is essentially the same as the Liklihood object, but priors are applied here.
Parameters: - likelihood (radvel.likelihood.Likelihood) – Likelihood object
- params (radvel.model.Parameters) – parameters object
Note
Append radvel.prior.Prior objects to the Posterior.priors list to apply priors in the likelihood calculations.
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logprob()[source]¶ Log probability
Log-probability for the likelihood given the list of priors in Posterior.priors.
Returns: log probability of the likelihood + priors Return type: float
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logprob_array(param_values_array)[source]¶ Log probability for parameter vector
Same as self.logprob, but will take a vector of parameter values. Useful as the objective function for routines that optimize a vector of parameter values instead of the dictionary-like format of the radvel.model.Parameters object.
Returns: log probability of the likelihood + priors Return type: float