[Scipy-tickets] [SciPy] #486: Built-in Poisson CDF and PMF function slower than using built-in gamma

SciPy scipy-tickets@scipy....
Thu Feb 26 22:54:48 CST 2009


#486: Built-in Poisson CDF and PMF function slower than using built-in gamma
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 Reporter:  danhs                                                            |        Owner:  somebody
     Type:  defect                                                           |       Status:  new     
 Priority:  normal                                                           |    Milestone:          
Component:  scipy.stats                                                      |      Version:  0.5.2   
 Severity:  normal                                                           |   Resolution:          
 Keywords:  probability distribution, scipy.stats, speed, poisson, binomial  |  
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Comment (by dhuard):

 This ticket is fairly old...  In revision 5601, speed does not appear to
 be an issue for the poisson cdf. It uses the pdtr function which comes
 from the cephes library.

 I suggest this ticket be closed.

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Ticket URL: <http://scipy.org/scipy/scipy/ticket/486#comment:1>
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