GNU Scientific Library - Bugs: bug #47193, gsl_ran_poisson_pdf with mu=0

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bug #47193: gsl_ran_poisson_pdf with mu=0

Submitter:	Patrick Alken <psa>
Submitted:	Thu 18 Feb 2016 04:39:48 PM UTC
Category:	None	Severity:	3 - Normal
Operating System:		Status:	None
Assigned to:	None	Open/Closed:	Open
Release:

Thu 09 Nov 2017 07:03:22 AM UTC, comment #1:  Same bug report as bug #43326.	Timothee Flutre <tflutre>
Thu 18 Feb 2016 04:39:48 PM UTC, original submission:   from trojkan =at= gmail =dot= com Hi, I noticed that gsl_ran_poisson_pdf(k, mu) error out if mu=0.0. IMHO a Poisson distribution with zero mean is a perfectly valid distribition (although it is not very random), so I find it unexpected that the function doesn't support it. I suggest to add some code taking care of the special case. Something like: if (!mu) {   if (k)     return 0.0   return 1.0 }	Patrick Alken <psa>

 

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