Hi, Please consider the following code
library (caret) x=matrix(c(12:131),2) p=preProcess(x, method=c("center","scale")); x.prep=predict(p,x) y.prep=x.prep[60,60] How can I get the value of y (the value from y.pre not centered and not scaled ) using p and y.prep? Thank you! Rui [[alternative HTML version deleted]] ______________________________________________ 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.