The syntax description is here: http://www.jsoftware.com/jwiki/Addons/stats/base/distribution#binomialdist
A simple working example: load 'statdist' binomialdist 0.5 5 NB. 0.03125 0.15625 0.3125 0.3125 0.15625 0.03125 binomialprob 0.5 5 4 4 NB. what are the odds of getting 4 successes out of 5 trials with success of 0.5 in any individual trial NB. 0.15625 The same in R or RStudio: dbinom(4, 5, 0.5)[1] 0.15625 ------------------------------------ Now some unexpected results: First in RStudio: > dbinom(41, 2872, 0.0143281399120119)[1] 0.06260893 And now in j602a: binomialprob 0.0143281399120119 2872 41 41 NB. 0 x: binomialprob 0.0143281399120119 2872 41 41 NB. 0 I also get weird results with this: binomialdist 0.07 280 And this: binomialprob 0.075 280 20 20 NB. _ The last one in RStudio gives this result: > dbinom(20, 280, 0.075)[1] 0.08980949 -------------------- Is this a bug in j602a statdist package? My Package Manager shows stats/distribs version as 1.0.2, which is indicated as the latest. Regards, Tarmo Veskioja ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
