Dear all, I would like to understand the effect of censoring in a linear model therefore I am doing the following n <- 20 cen <- sample(x=c(0,1), size=n-1, replace=TRUE, prob=c(0.8,0.2)) cen <- c(cen,0) x <- rnorm(n,0,1) tt <- -1+x+log(-log(1-runif(n)))+0.5767 y <- c() for(i in 1:n){ y[i] <- min(tt[i],cen[i]) } moda <- lm(tt~x) modb <- lm(y~x) Is this simulation correct? Thank you in advance! Samuel [[alternative HTML version deleted]]