R devel - Nov 2008 - FW: read.ssd

Did not seem to reach Saikat DebRoy, this might be the forum.
Bendix

-----Original Message-----
From: BXC (Bendix Carstensen) 
Sent: 24. november 2008 15:00
To: 'saikat at stat.wisc.edu'; 'stvjc at channing.harvard.edu'
Subject: read.ssd

It's always annoyed me that that read.ssd crashed on datasets with long
variable names, but the other day a collegue of  mine pointed out to me the
SAS-option validvarname=V6, which takes care of the problem by truncating names.

So here is a first go at it which works, but lets you guess what variable the
truncated names refer to (normally a minor problem). The small changes in the
code are flagged with "####". Hope it makes it into read.ssd.

If you want to supply information on the long filename or even restore them, the
solution is to construct a proc contents step and output the filenames along
with their labels, import this dataset too and use it to restore names. This is
considerably more longwinded and could presumably wait. The little example
SAS-program should give the details of the SAS-code needed, but a lot of
namefidgeting in R is required afterward to make it work...

Best regards,
Bendix
______________________________________________

Bendix Carstensen
Senior Statistician
Steno Diabetes Center
Niels Steensens Vej 2-4
DK-2820 Gentofte
Denmark
+45 44 43 87 38 (direct)
+45 30 75 87 38 (mobile)
bxc at steno.dk   http://www.biostat.ku.dk/~bxc

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Peter D told me the attachments went astray.
The files of interest are now in http://staff.pubhealth.ku.dk/~bxc/R-ex/, as
read.ssd7.r and for an excample SAS-program that illustrates the the features,
see x-xpt.sas.
Bendix
> -----Original Message-----
> From: Peter Dalgaard [mailto:p.dalgaard at biostat.ku.dk] 
> Sent: 25. november 2008 08:47
> To: BXC (Bendix Carstensen)
> Subject: Re: [Rd] FW: read.ssd
> 
> BXC (Bendix Carstensen) wrote:
> > Did not seem to reach Saikat DebRoy, this might be the forum.
> 
> Ingen attachment. Din mailer fumler sikkert med Content-Type, 
> s? mailing list filteret tror at det er noget bin?rt.
> 
> 	-p
> 
> > Bendix
> > 
> > -----Original Message-----
> > From: BXC (Bendix Carstensen)
> > Sent: 24. november 2008 15:00
> > To: 'saikat at stat.wisc.edu'; 'stvjc at
channing.harvard.edu'
> > Subject: read.ssd
> > 
> > It's always annoyed me that that read.ssd crashed on 
> datasets with long variable names, but the other day a 
> collegue of  mine pointed out to me the SAS-option 
> validvarname=V6, which takes care of the problem by truncating names.
> > 
> > So here is a first go at it which works, but lets you guess 
> what variable the truncated names refer to (normally a minor 
> problem). The small changes in the code are flagged with 
> "####". Hope it makes it into read.ssd.
> > 
> > If you want to supply information on the long filename or 
> even restore them, the solution is to construct a proc 
> contents step and output the filenames along with their 
> labels, import this dataset too and use it to restore names. 
> This is considerably more longwinded and could presumably 
> wait. The little example SAS-program should give the details 
> of the SAS-code needed, but a lot of namefidgeting in R is 
> required afterward to make it work...
> > 
> > Best regards,
> > Bendix
> > ______________________________________________
> > 
> > Bendix Carstensen
> > Senior Statistician
> > Steno Diabetes Center
> > Niels Steensens Vej 2-4
> > DK-2820 Gentofte
> > Denmark
> > +45 44 43 87 38 (direct)
> > +45 30 75 87 38 (mobile)
> > bxc at steno.dk   http://www.biostat.ku.dk/~bxc
> > 
> > This e-mail (including any attachments) is intended for the 
> addressee(s) stated above only and may contain confidential 
> information protected by law. You are hereby notified that 
> any unauthorized reading, disclosure, copying or distribution 
> of this e-mail or use of information contained herein is 
> strictly prohibited and may violate rights to proprietary 
> information. If you are not an intended recipient, please 
> return this e-mail to the sender and delete it immediately 
> hereafter. Thank you.
> > 
> > 
> > 
> > 
> ----------------------------------------------------------------------
> > --
> > 
> > ______________________________________________
> > R-devel at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-devel
> 
> 
> -- 
>     O__  ---- Peter Dalgaard             ?ster Farimagsgade 5, Entr.B
>    c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
>   (*) \(*) -- University of Copenhagen   Denmark      Ph:  
> (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)              FAX: 
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>