Try this: sweep(with(x, tapply(VAR, list(variable, YEAR), FUN = prod)), 2, with(x, tapply(VAR, YEAR, FUN = prod)), FUN = "/")
On Mon, Apr 26, 2010 at 12:07 PM, n.via...@libero.it <n.via...@libero.it>wrote: > > Dear list, > I have a big data frame which looks like this: > variable YEAR VAR > EC01 2006 100 > > EC01 2007 200 > > EC02 2006 500 > > EC02 2007 450 > > PROD 2006 567 > > PROD 2007 543 > > What I would like to do is to divide each variables by PROD,namely: > EC01(2006)/PROD(2006) > EC01(2007)/PROD(2007) > EC02(2006)/PROD(2006) > EC02(2007)/PROD(2007) > Anyone knows how to do it?? > THANKS!!! > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ 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.
