[R] foreign package: unable to read S-Plus objects

[@vi@e@gross m@iii@g oii gm@ii@com]

Just an idea if this is a one-time need to copy static data once used in
non-R to R. You are a bit vague about what you mean by "objects."

If you can find someone who uses S or S+ then maybe they can load the data
in and export it in some format usable for you and send you those files. If,
for example, your data is just a data.frame, they can send it as a .CSV file
or any format you want. Once you have it, you can read it into R and save it
any other way you wish.

If the data is something more complex like a dump of all kinds of variables,
this may not be practical but I have to wonder how much it and R have
diverged all these years and whether it would be something you can import
and continue running with.

I downloaded the files and they seem to be in a folder with 8 files that
have no suffixes with sizes ranging from 1KB to 469  KB so nothing gigantic.
The big files is simdata and two smaller files called simmax and simmean may
well be related  but I have to wonder if the way to view them is at the
folder level as a grouped entity or the individual file level.

I wonder if there is a trial version of the software you could get from
whoever sells it, like TIBCO.

Good luck with that. 

-----Original Message-----
From: R-help <r-help-bounces using r-project.org> On Behalf Of Jan van der Laan
Sent: Tuesday, January 17, 2023 9:09 AM
To: r-help using r-project.org
Subject: Re: [R] foreign package: unable to read S-Plus objects

You could try to see what stattransfer can make of it. They have a free
version that imports only part of the data. You could use that to see if
stattransfer would help and perhaps discover what format it is in.

HTH
Jsn


On 16-01-2023 23:22, Joseph Voelkel wrote:
> Dear foreign maintainers and others,
> 
> I am trying to import a number of S-Plus objects into R. The only way I
see how to do this is by using the foreign package.
> 
> However, when I try to do this I receive an error message. A snippet of
code and the error message follows:
> 
> read.S(file.path(Spath, "nrand"))
> Error in read.S(file.path(Spath, "nrand")) : not an S object
> 
> I no longer know the version of S-Plus in which these objects were
created. I do know that I have printed documentation, dated July 2001, from
S-Plus 6; and that all S-Plus objects were created in the 9/2004 -- 5/2005
range.
> 
> I am afraid that I simply have S-Plus objects that are not the S version 3
files that the foreign package can read, yes? But I am still hoping that it
may be possible to read these in.
> 
> I am not attaching some sample S-Plus objects to this email, because I  
> believe they will be stripped away as binary files. However, a sample 
> of these files may be found at
> 
> https://drive.google.com/drive/folders/1wFVa972ciP44Ob2YVWfqk8SGIodzAX
> Pv?usp=sharing  (simdat is the largest file, at 469 KB)
> 
> Thank you for any assistance you may provide.
> 
> R 4.2.2
> Microsoft Windows [Version 10.0.22000.1455]
> foreign_0.8-83
> 
> 
> Joe Voelkel
> Professor Emeritus
> RIT
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
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