[R] Problem Writeing a pipe using R (stdin is consumed)

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From: Alberto Gobbi (agobbi@anadyspharma.com)
Date: Sat 22 Feb 2003 - 03:15:47 EST


Message-id: <F71FE60EC95F164BB32C51B0E7A9C4C7163DF9@eggs.anadys.anadyspharma.com>

Hi everybody,
I a, trying to use R as a pipe like this:

cat inputData | R --silent RCommandFile >outputData

The RCommandFile would contain something like readLines(stdin()).
I have tryed various things and none did work cleanly.

One possible solution is to use the pipe() function inside R and to pass in the "cat inputData" however this is not very convenient
since I would like to use variable commands to generate the inputData which are much more complex than just "cat inputData" they might consist themselves of multiple pipes.

The problem is that R uses the stdin for itself to read commands and I could not find any solution.

Thanks a lot,
Alberto

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