[R] question about "system" command

Austin, Matt maustin at amgen.com
Thu Jan 26 06:54:50 CET 2006

Something like this.

See ?formatC, ?paste

for (i in 1:100)
    system(paste("C:\\Progra~1\\DOSPROGRAM\\RUN.exe input",
                  formatC(i, digits=2, flag='0'),

Amgen, Inc

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Taka Matzmoto
Sent: Wednesday, January 25, 2006 9:31 PM
To: r-help at stat.math.ethz.ch
Subject: [R] question about "system" command

Hi R Users
I am going to write a very short script for my small pilot simulation study.
I need to call a DOS program with different input data files in the middle 
of for loop.
There are 100 input data files (e.g., input001.dat, input002.dat, .... , 

for (1 in i :100)
    system('"C:\\Program Files\\DOSPROGRAM\\RUN.exe" input001.dat')

I like to change the input data file name as for loop runs. How can I do 
that ?

Thanks in advance


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