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2012 Jan 17
2
How to loop on file names
Dear all,
I need to do the same procedure on several files. But I don't know how
to refer to the file name.
Here is an example of what I am trying to do.
List of files: file1(A,B,C, D1...Dn), file2(A,B,C,E1,...,En),
file3(A,B,C,F1,...,Fn)
Procedure I want to apply on each file:
dft <- melt(df,id=c('A','B','C'))
dft$X <- substr(dft$variable,1,3)
dft$Y <-
2012 Sep 26
3
Reading multiple files
Hi,
I have 35 data files for reading. I would like get a program for
performing reading of 35 files at once.
All are of the type: Dados1.raw, Dados2.raw and so on.
If the files have the same number of columns, I can read with the
following commands:
rm(list=ls())
filenames = list.files(path="~/Silvano/Arq", pattern="Dados+.*raw")
names = substr(filenames, 1, 7)
for(i in