setting upper and lower limits in rnorm

Question

I am simulating data using rnorm, but I need to set an upper and lower limit, does anyone know how to do this?

code:

rnorm(n = 10, mean = 39.74, sd =         


        

Answer 1

You can make your own truncated normal sampler that doesn't require you to throw out observations quite simply

rtnorm <- function(n, mean, sd, a = -Inf, b = Inf){
    qnorm(runif(n, pnorm(a, mean, sd), pnorm(b, mean, sd)), mean, sd)
}