[R] Can read files at the BATCH jobs?

[Uwe Ligges]

ken_lee wrote:
> 
> Dear all,
>      I want to run a batch job, but how to get the dynamic file?
> 
>      example:
>          If I have a.R file like
>            a<-function(data.file) {
>                  read.csv(data.file)
>                 ......
>            }
> 
>      I create r.csh in unix like
> 
>   setenv R_HOME /usr/local/lib/R
>    R BATCH --no-save </usr/users/a.R
> 
>   where I can put the data.file?

1) You can specify a complete path for "data.file" in read.csv(), e.g.
 read.csv("/home/username/a.dir/my.data.file")

2) If you don't want to specify the path, the file must be in your
working directory.
You can set the working directory with setwd() (and get it with
getwd()).
The default working directory is the directory from which you invoked R.

Uwe Ligges
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