As describe in the Hmisc package's improveProb function, that function is for binary Y. And it's best to use category-free methods. Frank Petergodsk wrote
Hi I'm new to R. Is it possible to use the improveProb function to generate categorybased NRI using a Cox model? I believe I saw someone mentioning the possibility, but I can't find the syntax in the R help. Thanks, Peter Godsk
----- Frank Harrell Department of Biostatistics, Vanderbilt University -- View this message in context: http://r.789695.n4.nabble.com/NRI-reclassification-table-improveProb-Cox-tp4653768p4653770.html Sent from the R help mailing list archive at Nabble.com.