Improved the numerical stability of the PDF model in UnimodalPdf
UnimodalPdf now determines sensible bounds on it's model parameters, which are used in the model fitting, and can be accessed through a new instance attribute bounds.
A new UnimodalPdf instance method evaluate_model has been added which allows the model to be evaluated for specified parameter values.
UnimodalPdfUnimodalPdfnow determines sensible bounds on it's model parameters, which are used in the model fitting, and can be accessed through a new instance attributebounds.UnimodalPdfinstance methodevaluate_modelhas been added which allows the model to be evaluated for specified parameter values.UnimodalPdf.