scipy.stats._result_classes.FitResult.
nllf#
- FitResult.nllf(params=None, data=None)[source]#
- Negative log-likelihood function - Evaluates the negative of the log-likelihood function of the provided data at the provided parameters. - Parameters:
- paramstuple, optional
- The shape parameters, location, and (if applicable) scale of the distribution as a single tuple. Default is the maximum likelihood estimates ( - self.params).
- dataarray_like, optional
- The data for which the log-likelihood function is to be evaluated. Default is the data to which the distribution was fit. 
 
- Returns:
- nllffloat
- The negative of the log-likelihood function.