[R] R File IO Slow?

Henrik Bengtsson hb at stat.berkeley.edu
Thu Mar 1 18:59:29 CET 2007


Just an idea: Two things that can slow down save()/load() is if you
save() in ASCII format or a compressed binary format.  If this is your
case for MYFILE, try to resave in a non-compressed binary format.  See
?save for details.

/HB

On 3/1/07, ramzi abboud <ramziabb at yahoo.com> wrote:
> Is R file IO slow in general or am I missing
> something?  It takes me 5 minutes to do a load(MYFILE)
> where MYFILE is a 27 MB Rdata file.  Is there any way
> to speed this up?
>
> The one idea I have is having R call a C or Perl
> routine, reading the file in that language, converting
> the data in to R objects, then sending them back into
> R.  This is more work that I want to do, however, in
> loading Rdata files.
>
> Any ideas would be appreciated.
> Ramzi Aboud
> University of Rochester
>
>
>
>
>
>
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