Hallo! Would like to add vertical text labels to a histogram. Was trying with las but without sucess. I am using the standard histogram. This is what I was trying. hist(resS2$sam,breaks=seq(0,1,0.01),col=3,border=0,freq=F,add=T,xlim=c(0,1)) text(quantile(resS2$dif,0.005),5, "0.5% FP rate" ,pos=2,cex=0.6,las=2) Thanks in advance. Eryk