On Mon, 31 Jan 2011, eric wrote: > I'd rather do this without getting into zoo objects at the moment. OK, how > about with a simple loop ? Why doesn't this work ? > > attach(xyz) > j <- for(i in 4: length(Close)) sd(Close[i]:Close[(i-3)])
To answer your question, it is because the value returned from a loop is the last value calculated, not every value calculated. HTH, Ray Brownrigg ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
