Hi Please describe what do you mean by stacking files?
Stack takes each numeric column of data frame and transform it to two column data frame with one column being numeric value and the other column an indicator based on column name. see head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa 5 5.0 3.6 1.4 0.2 setosa 6 5.4 3.9 1.7 0.4 setosa stack(head(iris)) Regards Petr > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Jonsson > Sent: Tuesday, March 19, 2013 11:36 AM > To: r-help@r-project.org > Subject: Re: [R] Why stacking rasters return NAs? > > Thanks. Could you please tell me how to stack all those files properly? > > > > -- > View this message in context: http://r.789695.n4.nabble.com/Why- > stacking-rasters-return-NAs-tp4661706p4661784.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. ______________________________________________ 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.