Strange means of numbers drawn from rpois (PR#729)
Kjetil Kjernsmo <kjetil.kjernsmo@astro.uio.no> writes:
On 8 Nov 2000, Peter Dalgaard BSA wrote:
I'm not at all happy with this: Solaris :
range(sapply(1:2000, function(n) mean(rpois(10000, 15.0))))
[1] 15.0524 15.3403
Hm, OK, so it isn't just me.... I guess it is time to file a bug report, should I do it, or will you take care of it?
Done... (This kind of behaviour has been observed on various platforms and various compilers, sometimes getting stuck around 15.15 and sometimes around 14.5. Others report no problems. Very strange. I've seen one case where it apparently shifted from one regime to the other.)
O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._