inputdata <- read.table(file("clipboard"), sep = "\t") head(inputdata) insp <- inputdata$V1 mu <- mean(insp) sd <- sd(insp) par(mfrow = c(2, 1)) hist(insp, breaks = 40,freq=F,main="Original") hist((insp - mu)/sd, breaks = 40,freq=F,main="Z-Score") curve(dnorm,add=T,col="red",lwd=2)