[18895] in s-news-athena
[S] poisson random variate
daemon@ATHENA.MIT.EDU (Qingshou Huang 647-6716)
Mon Aug 9 14:53:00 1999
Message-Id: <9908091849.AA28137@crx.pci.upmc.edu>
To: s-news@wubios.wustl.edu
Cc: huang@crx.pci.upmc.edu
Date: Mon, 09 Aug 1999 14:49:06 -0400
From: "Qingshou Huang 647-6716" <huang@crx.pci.upmc.edu>
Hi All,
I have a question about the function rpois():
When lambda =3D 10, Chi-square goodness-of-fit test failed at alpha =3D
0.05 level for my codes bellow. Why?
set.seed(35)
sdata<-sort(rpois(100000,lambda=3D10))
breaks<-quantile(sdata)
breaks[1]<-breaks[1]-1
chisq.gof(sdata,cut.points=3Dbreaks,dist=3D"poisson",lambda=3D10)
Thanks in advance for any explanation.
Qingshou
----------------------------------------------------------------------
Qingshou HUang phone: (412)647-6716
fax: (412)647-5678
University Pittsburgh Medical Center
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