R-beta: Two simple suggestions.
luke at stat.umn.edu
Thu May 8 12:57:46 CEST 1997
Mike Meyer wrote:
> 1) The .RData file (and S .Data area) are cputype dependent. When R is used
> from different types of machines (say, HP and Sun) that share a common
> filesystem (say afs or dfs) then loading the wrong type of .RData file can
> lead to mysterious behaviour. In my environment, undergraduate students are
> the most likely to log into different cputypes, and they end up being quite
> confused. To solve this problem in S I set up an S_WORK environment variable
> that set the name of the .Data area, via the front end shell script. For
> example, on the HP I use .Data.hp. I would like to see the same facility in
> R. if R_WORK is missing, then use the standard name. If R_WORK exists, then
> use that name as the file to save the R session in. (Maybe S_WORK exists in
> Splus only to please me, but it is useful :-).
An alternative that may be worth considering is to make .Rdata machine
independent, perhaps by using the xdr routines -- I think these are
available on Mac and Windows as well as any unix system that does nfs.
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