If you try library(MASS) example(lda) predict(z)$posterior
You will see there are very many posterior probabilities there, too, which differe from 1 by round-off error at most. So your data are not unique. I don't get why you don't get it. Bill Venables http://www.cmis.csiro.au/bill.venables/ -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of gcam032 Sent: Sunday, 12 April 2009 11:16 AM To: r-help@r-project.org Subject: [R] predict.lda posteriors equal to 1 Hi all, I was wondering if anyone was able to explain to me why when I run predict.lda() on some new data I get lots of posterior probabilities = 1. This seems markedly unrealistic. What do the posteriors mean in the context of the predict.lda() function? Thanks Gareth -- View this message in context: http://www.nabble.com/predict.lda-posteriors-equal-to-1-tp23007165p23007165.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
