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6 messages · Ray Brownrigg, Tim Hoar, Brian Ripley +1 more

Original
Ray Brownrigg
# 
Why don't you try it?  I don't use Windows, so have no hope of doing any
testing (and no incentive to try).

That said, I think there may still be an issue with licensing of the old
AT&T code.  It is said to be 'public domain' and the authors have no
problems with wider dissemination, but you try and get an authoritative
letter out of Lucent Technologies for some code 'owned' by AT&T Bell
Laboratories 10 years ago.....

Further, as Brian Ripley has mentioned, the binary databases are
different for big-endian/little-endian, so for a package to work, you
would have to go back to the data sources or keep two copies of the
databases.  This would make the package even larger, unless you extract
the databases to a separate package or three.  [I use a series of C
programs to convert the database formats between (S-Plus) Unix/Windows
and between (SPARC) S-Plus and (Intel) R.  Until recently I was not
able to create new databases under Linux/Intel.]

Regards,
Ray Brownrigg
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Tim Hoar
# 
as pertains the binary databases, I was able to (easily) successfully
use the Rstreams functions to read the "opposite"-endian binary file.

The binary file was created on a Sun and successfully read on a Pentium:


s <- openstream(filename, "read")
bogus  <- readint(s, n = 1, size = 4, signed = TRUE, swapbytes = TRUE);
datvec <- readfloat(s, n=nLats*nLons*nLevels, size=4)
bogus  <- readint(s, n = 1, size = 4, signed = TRUE, swapbytes = TRUE);
closestream(s)


In this case, the binary file was a Fortran unformatted write, so there
were 4byte record words at the beginning and end.  Not using them does
make life a little more dangerous.

As it turns out, the original "poster" (Claudia) works across town in
a different division, we'll probably work together on this and see what
we can come up with.

Tim
## Tim Hoar, Associate Scientist              email: thoar at ucar.edu     ##
## Geophysical Statistics Project             phone: 303-497-1708       ##
## National Center for Atmospheric Research   FAX  : 303-497-1333       ##
## Boulder, CO  80307                    http://www.cgd.ucar.edu/~thoar ##

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Brian Ripley
#
On Wed, 27 Jun 2001, Tim Hoar wrote:

            

      
      
      
    

        
Can I suggest you note that R-data.texi says

  Binary connections (@ref{Connections}) are now the preferred way to
  handle binary files, and package @pkg{Rstreams} will be withdrawn in
  late 2001.

and act accordingly.  readBin, for example, has an `endian' argument
that makes this transparent to the user.

            

      
      
      
    

        

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      Brian Ripley
    

    

      
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On Thu, 28 Jun 2001, [ISO-8859-1] Göran Broström wrote:

        

            

      
      
      
    

        
gcc 3.0 works for me as an upgrade on RH6.2, and compiles R-1.3.0 on both
Linux and Solaris.

I'd go for 3.0.

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      Göran Broström
    

    

      
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I want advise on which gcc-version to upgrade to on my RH7.1 Linux:
Redhat announces a new version (mainly fixing bugs), and at the same
time I see gcc-3.0 released (at gcc.gnu.org). Any suggestions?
I could try installing gcc-3.0 and R-1.3.0 if noone else already have.

G?ran

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      Göran Broström
    

    

      
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On Thu, 28 Jun 2001, Prof Brian Ripley wrote:

        

            

      
      
      
    

        
Thanks Brian, I did, and all the installations and checks went smoothly. I
didn't run the test-suite accompanying gcc-3.0, though.

G?ran

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