Hi, thanks for your answer!
Just to make it clearer, if this is the case:
x <- c (1, 2, 3, 4)
m <- mean(x)
sd <- sd(x)
scaled_x <- scale (x, center = TRUE, scale = TRUE)
To unscale the data, I have to do the following:
unscaled_x <- (scaled_x - m)*sd ?
Thanks!