R help - Jan 2009 - Re ad a text file from a directory in which an R script finds itself

Is it possible for an R script to read a text file, say, from the directory
in which the script is located ?

I don't think I can use setwd(), because I can't specify the directory.
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Hi, 
> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of ppaarrkk
> Sent: Tuesday, January 13, 2009 12:53 PM
> To: r-help at r-project.org
> Subject: [R] Re ad a text file from a directory in which an R 
> script finds itself
> 
> 
> Is it possible for an R script to read a text file, say, from 
> the directory
> in which the script is located ?
> 
> I don't think I can use setwd(), because I can't specify the 
> directory.
maybe you have to be a bit more specific?
What do you mean by "I can't specify..."?
- you don't know how to specify the directory ->
setwd("c:/mydirectory/anotherdirectoy/")
mydata <- read.table(.....)
- you don't know the directory...hmmm, how do you know then that the
script file is there?

Does this help?
Roland

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This is an ugly hack but add this line to your sourced script:

this.dir <- dirname(parent.frame(2)$ofile)

It must be at top level, i.e. not in a function in the script.

On Tue, Jan 13, 2009 at 6:53 AM, ppaarrkk <simon_ecc at yahoo.co.uk>
wrote:
>
> Is it possible for an R script to read a text file, say, from the directory
> in which the script is located ?
>
> I don't think I can use setwd(), because I can't specify the
directory.
> --
> View this message in context:
http://www.nabble.com/Read-a-text-file-from-a-directory-in-which-an-R-script-finds-itself-tp21434236p21434236.html
> Sent from the R help mailing list archive at Nabble.com.
>
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