I am using R to do a loess normalisation procedure. In 1.5.1 I used the following commands to normalise the variable "logratio", over a 2d surface (defined by coordinates x and y):
> array <- read.table("121203B_QCnew.txt", header=T, sep="\t") > array$logs555<-log(array$s555)/log(2) > array$logs647<-log(array$s647)/log(2) > array$logratio<-array$logs555-array$logs647 > array$logav<-(array$logs555+array$logs647)/2 > library(modreg) > loess2d<-loess(logratio~x+y,data=array) > array$logratio2DLoeNorm <-array$logratio - predict.loess(loess2d, array) However in 1.8.1 all goes well until the last step when I get an error: Error: couldn't find function "predict.loess" Can anyone help ? Thomas ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html