[EMAIL PROTECTED] wrote: > Full_Name: foo ba baz > Version: R2.2.0 > OS: Mac OS X (10.4) > Submission from: (NULL) (219.66.32.183) > > > chisq.test(matrix(c(9,10,9,11),2,2)) > > Chi-square value must be 0, and, P value must be 0 > R does over correction > > when | a d - b c | < n / 2 ，chi-sq must be 0 >
(Presumably, you mean P-value = 1.) If you don't want the correction, set correct=FALSE. (The results won't differ much.) A better example is chisq.test(matrix(c(9,10,9,10),2,2)) for which R probably should return X-squared = 0. Peter Ehlers ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
