[R] RSPerl and Statistics::R
stefan.evert at uos.de
Fri May 8 01:27:53 CEST 2009
> Being a Perl hacker for some time, and wanting to leverage what R
> provides, I've been trying to work with Statistics::R and RSPerl.
> The former has a race condition that breeds some unreliability and
> the latter seems to have issues all around, and neither has been
> updated in some time.
I have been using RSPerl for quite a long time, and for the same
purpose as you (i.e. I'm only interested in running R from Perl, not
vice versa). I've had to hack practically every release of RSPerl to
get it to build and install on my computers, especially on Mac OS X
(where the R build process is completely at odds with universal
binaries and the default Perl configuration). Once installed, it's
been very fast and reliable, though, at least for simple operations
(basically, I want to pass numeric vectors between R and Perl and
apply R functions to them).
When I became aware of Statistics::R, I was surprised about its
extremely simple approach, because I expected this design to run afoul
of all sorts of race conditions, buffers not being flushed, etc.;
which your posting appears to confirm. In my own software, I use
Perl's Expect module as a fallback, but this is _extremely_ inefficient.
> Are these projects are abandoned, or is there some effort currently
> being undertaken to either refresh or reinvent the glue binding Perl
> and R together?
> If not, then I'm probably going to give it a go myself, but I'm sort
> of hoping that there's a jewel of a library out there that doesn't
> come up as quickly in Google as the aforementioned libraries.
With all the problems that RSPerl has -- and they're mostly related to
using R from Perl AFAIK -- I'm wondering if it wouldn't make for
people like us to develop a Perl client for the Rserve protocol (see http://www.rforge.net/Rserve/)
[ stefan.evert at uos.de | http://purl.org/stefan.evert ]
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