R help - Jan 2008 - output into an unformatted direct fortran file

Hello everybody

Is there a way to output data into a file like the unformatted, direct
fortran files? That's the kind that can be opened with:

open(30, file='file', format='unformatted',
access='direct', rec=1000,
convert='big endian')

Thank you in advance
Kostas Douvis

On Mon, 7 Jan 2008, Costas Douvis wrote:
> Hello everybody
>
> Is there a way to output data into a file like the unformatted, direct
> fortran files? That's the kind that can be opened with:
>
> open(30, file='file', format='unformatted',
access='direct', rec=1000,
> convert='big endian')
Fortran file formats depend on the compiler and OS, neither of which you 
have told us.  You may be able to write a suitable file with writeBin: I 
would start by trying to read such a file with readBin.  Otherwise you 
link compiled Fortran into R to do this (if Fortran I/O works, again 
depends on your unstated system).
> Thank you in advance
> Kostas Douvis
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

> Is there a way to output data into a file like the unformatted, direct
> fortran files? That's the kind that can be opened with:
It sounds like you want to use cat(), e.g.
cat("x = ", 1:10, file="test.txt")

See also write for outputting matices to file; and write.table and 
write.csv for data frames.

Regards,
Richie.

Mathematical Sciences Unit
HSL


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