[R] relative referencing for filenames &etc

[Uwe Ligges]

On Mon, 27 Feb 2006, Greg Tarpinian wrote:

> BACKGROUND:
> I use SAS on a daily basis and one of its most powerful features in a
> production environment is the use of LIBNAME and FILEREF statements, e.g.:
> 
> 
> PROC PRINTTO LOG = "&LOGDIR.\data processing.log" NEW;
> RUN;
> PROC IMPORT 
> 	DATAFILE= "&DATADIR.\blah.xls"
> 	OUT = TEMP
> 	DBMS = EXCEL REPLACE;
>     SHEET = "Sheet1"; 
>     GETNAMES = YES;
> RUN;
> 
> 
> Properly setting up SAS Shortcuts in the WinXP environment, or (say)
> the UNIX equivalent of batch files in the UNIX environment will cause
> SAS to autoexecute (say) an INIT.SAS file that automatically assigns
> the LOGDIR and DATADIR macro variables used above.  This is extremely
> convenient because it makes the SAS code more portable from project to
> project.
> 
> 
> MY QUESTION:
> Is it possible to use this kind of relative file and directory referencing
> from within R?

Perhaps you are looking for ?setwd

Uwe ligges
 
> 
> Kind regards,
> 
> 
>       Greg
> 
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