You might use dir() to get the file names (if they are in the same folder), or something like dir(pattern="^file.*") if you want to read only some files from there. Then for storing the result as something like store[i,j] as in your example, you could split the file name using something like strsplit(filename, "_") and use the resulting components for i and j.
Best regards, Kenn On Tue, May 24, 2011 at 1:00 PM, Alaios <[email protected]> wrote: > Dear all, > I would like to do read a bunch of files that have the following format > > file_i_j > examples: > file_1_1 > file_1_2 > file_1_3 > file_2_1 > file_2_2 > file_3_1 > file_3_2 > file_3_3 > file_3_4 > file_4_1 > file_4_2 > > The integer i goes from 1 to 100 > and the integer j starts from 1 and stops somewhere between 1 and 100, which > I do not know in advance > > Usually I would be able to solve this by having a nested loop > > (algorithmic syntax below, not sure if is R okay) > for i in (c(1:100)) > for j in (c(1:100)) > store[i,j]<- read file_i_j > end > end > > the problem with that is that R will halt when j take a value that refers to > a non existing value. Thus I want to have a good way to break the nested loop > and continue with the outer one. How I can do that? > > Best Regards > Alex > > ______________________________________________ > [email protected] 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. > ______________________________________________ [email protected] 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.
