|Perl: the Markov chain saw|
Re: Memory Efficient Sparse Matrix Handlingby andye (Curate)
|on Jan 26, 2009 at 17:50 UTC||Need Help??|
You've already tried PDL's 'Sparse' module?
update: this is kind of off-the-wall, but you might also want to search cpan for RLE (run-length-encoding) - there's a bunch of image-related modules which can do rle for you.
update2: Also, see the rle() and rld() functions of pdl::slices.