Wladimir Eremeev wrote: > Dear r-help, > > Function sd calculates the standard deviation 'with (n-1) > denominator'. > > Are there any alternatives with n denominator? > > Thank you very much. > I don't know, but sqrt(sum((x - mean(x))^2) / n) from the definition is a quick hack (computational not nice, for sure). Uwe Ligges