R help - May 2001 - R and SAS

Hi

    I'm trying to read SAS-data on VAX/VMS to Windows R using
    foreign pakage read.xport and experience some problems.

    Following lines are used in SAS to create XPORT file

     LIBNAME a ''xxx;
     LIBNAME b XPORT '';

     PROC COPY IN=a OUT=b;

     RUN;

   and I succeed in getting file that looks like correct xport
file.However
   when typing in R following lines

  read.xport("htpa2000.txt")

  I get message

 Error in lookup.xport(file) : SAS transfer file has incorrect library
header

 Does anyone has advice ? Is the problem in VAX/VMS SAS XPORT file ?


Janne Pitkaniemi
National Public Health Institute, Finland

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Janne Pitk?niemi <Janne.Pitkaniemi at ktl.fi> writes:
>     I'm trying to read SAS-data on VAX/VMS to Windows R using
>     foreign pakage read.xport and experience some problems.
> 
>     Following lines are used in SAS to create XPORT file
> 
>      LIBNAME a ''xxx;
>      LIBNAME b XPORT '';
> 
>      PROC COPY IN=a OUT=b;
> 
>      RUN;
> 
>    and I succeed in getting file that looks like correct xport
> file.However
>    when typing in R following lines
> 
>   read.xport("htpa2000.txt")
> 
>   I get message
> 
>  Error in lookup.xport(file) : SAS transfer file has incorrect library
> header
> 
>  Does anyone has advice ? Is the problem in VAX/VMS SAS XPORT file ?
Can you send us the first 160 characters of the file?  It is supposed to be
in text format (more or less) and should look something like

HEADER RECORD*******LIBRARY HEADER RECORD!!!!!!!000000000000000000000000000000 
SAS     SAS     SASLIB  7.00    OSF1                        10DEC99:15:56:30

It does not contain any carriage returns or line feeds.

This is what SAS claims in their documentation is the correct initial line 
in the XPORT format.  Hence this is what we check for.

What SAS actually creates is often different.
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