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Hi R users: How can I obtain an italic font only for one of the two strips in a xyplot? library(lattice) t<-rep(seq(0,10,5),4) logCFU<-c(2,2.5,3,4,4.5,1.5,2,2.5,3,3.4,2,2.5) microorg<-factor(rep(c("E. coli","L. monocytogenes"),each=6)) tratam<-factor(rep(c("t1","t2"),6)) xyplot(logCFU~t|microorg+tratam,type="p", strip=strip.custom(par.strip.text=list(fontface=c("italic","bold")))) Thank you for your help. Kenneth

I'm trying to convert data from character to numeric. I've imported data as a csv file, I'm assuming that the import is a database - are all the columns in a database considered "vectors" and that they can be operated on individually Therefore I've tried the following mydata <- as.numeric(mydata$apples) when i then look at mydata again the named column is still