[Scipy-tickets] [SciPy] #620: scipy.stats.distributions.binom.pmf returns incorrect values

SciPy scipy-tickets@scipy....
Mon Nov 17 02:07:42 CST 2008


#620: scipy.stats.distributions.binom.pmf returns incorrect values
----------------------------+-----------------------------------------------
 Reporter:  robertbjornson  |        Owner:  somebody
     Type:  defect          |       Status:  new     
 Priority:  normal          |    Milestone:  0.7.0   
Component:  scipy.stats     |      Version:          
 Severity:  normal          |   Resolution:          
 Keywords:                  |  
----------------------------+-----------------------------------------------
Comment (by pbrod):

 A very good implementation of binomial pmf is described in a paper by
 Cathrine Loader (2000)
 "Fast and Accurate Computation of Binomial Probabilities";
   url = "http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.35.2719".
 I have uploaded the article for convenience.
 This version is also implemented in the R-package and is very accurate for
 large n.

 I think this is worth implementing.

-- 
Ticket URL: <http://scipy.org/scipy/scipy/ticket/620#comment:3>
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