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witkovsky
2009 Oct 11
2
Accuracy (PR#13999)
Full_Name: Viktor Witkovsky
Version: 2.9.2
OS: Windows XP
Submission from: (NULL) (78.98.89.227)
Hello,
I have found strange behavior of the function qchisq (the non-central qchisq is
based on inversion of pchisq, which is further based on pgamma). The function
gives wrong results without any warning. For example:
qchisq(1e-12,1,8.94^2,lower.tail=FALSE) gives 255.1840972465858 (notice that