Hello I am an "R" newbie. I have a problem with computing a variance on a vector.
> data(cars) > variance <- function (x) mean(x^2)-mean(x)^2; > variance(cars[,1]) [1] 27.4 > var(cars[,1]) [1] 27.95918 What did I assume/understand wrong ? TIA -- Samuel Landau ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
