Hi there, I use Rscript.exe for batch run (actually it is used in ASP.net code) c:>"C:\Program Files\R\R-2.10.1\bin\Rscript.exe" test.r xxx.txt Where test.r is the r program and xxx.txt is a file name test.r will read in, it comes from a web form. This works fine, when the file is in required format. Sometime, xxx.txt has wrong format, test.r read in but can't process it. If I run interactive mode, I probably can see the error message on the screen. But since this is running as a background process, I don't really have a screen to see. I tried redirct: c:>"C:\Program Files\R\R-2.10.1\bin\Rscript.exe" test.r xxx.txt > error.log But it doesn't work even in local windows. Thanks A. Huang
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