Martin Tomko wrote: > Hi Peter, > apologies, too fast copying and pasting. > So, here is the explanation: > f<-"C:/test/mytab.txt"; > R<-readLines(con=f); > > where mytab.txt is a table formatted as noted in previous post (space > delimited, with header, rownames, containing integers). > > Now, my understandign of scan was that I have to specify the FULL number > of values in it (examples specify things like 200*2000 for a matrix > etc). That's why I thought that I need to do cols*rows as well. Avoiding > the first line with headers is simple, avoiding the first column is not > - hence my questions. > Sorry, the corrected, matching parentheses are here - why did the > previous execute is a wonder... > c<-scan(file=f,what=rep(c(list(NULL),rep(list(0L),cols-1)),rows-1), skip=1) > here, my reasoning was: > > * c(list(NULL),rep(list(0L),cols-1)) specifies a template for any line > (first elelement to be ignored => NULL, it is a string in the table > specified, and then a repetition of integers - I am still not sure how > you derived 0L, and what it means and where to find a doc for that.); > * the previous needs to be repeated rows-1 times, hence > what=rep(c(list(NULL),rep(list(0L),cols-1)),rows-1) > > I do nto understand the following: > > You need an unlist(c). And more than likely NOT byrow=TRUE. However, I > think do.call(cbind,c) should do the trick more easily. > > what will unlist(c) do; why should it not be bywrow=TRUE, and how would > you go about integrating do.call(cbind,c) with matrix. Apologies to > naive questions, I am a newbie, in principle. >
At this point I think you need to actually try my suggestions, and maybe read the documentation again. Explaining how you have misunderstood the documentation is not going to help... -- Peter Dalgaard Center for Statistics, Copenhagen Business School Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.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.