Hallo,
have a look at the documentation of the different output functions
(write(),cat(),write.table()). Most of them have an argument like
"append". If you set this to TRUE, your command adds the lines you are
writing into the file to the lines already existent in that file. So if
you run this write() command first with your additional data (header
data) and then with the "real" data and append=TRUE, your information
ends up in the same file.
HTH
Jannis
Muhammad Rahiz schrieb:
Hello all,
I'd like some advise on this. When I read my files, I pass the
argument, skip=6, to skip 6 lines of header information. After
performing the desired calculations, I have the output. Now I want to
copy the 6 lines of skipped information to the output.
What I've been doing so far is to use a shell script (i.e. the cat
function) to copy the header information to the output file. This
means I need 2 additional files, namely a file containing the header
information only, and the shell script to run the the function.
Is there a direct way to perform this in R?
The following forms the main component of my R script;
x <- as.matrix(read.table("file.txt",skip=6))
y <- x*2
write.table(y,"output.txt",row.names=FALSE,col.names=FALSE)
Thanks
Muhammad
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