| MatrixMarket(3pm) | User Contributed Perl Documentation | MatrixMarket(3pm) |
PDL::CCS::IO::MatrixMarket - Matrix Market Exchange Format text I/O for PDL::CCS::Nd
use PDL;
use PDL::CCS::Nd;
use PDL::CCS::IO::MatrixMarket;
$ccs = PDL::CCS::Nd->newFromWhich($which,$nzvals);
ccs_writemm($ccs,"ccs.mm"); # write a sparse matrix market text file
$ccs2 = ccs_readmm("ccs.mm"); # read a sparse matrix market text file
$dense = random(10,10); # ... also supported for dense piddles
writemm($dense, "file.mm"); # write a dense matrix market text file
$dense2 = readmm("file.mm"); # read a dense matrix market text file
Write a PDL::CCS::Nd object as a MatrixMarket sparse coordinate text file.
ccs_writemm($ccs,$filename_or_fh) ccs_writemm($ccs,$filename_or_fh,\%opts)
Options %opts:
start => $i, ##-- index of first element (like perl $[); default=1 for MatrixMarket compatibility header => $bool, ##-- write embedded PDL::CCS::Nd header? (default=do)
Write a dense PDL as a MatrixMarket array text file.
writemm($pdl,$filename_or_handle) writemm($pdl,$filename_or_handle,\%opts)
Options %opts: (none yet)
Read a Matrix Market sparse coordinate text file as a PDL::CCS::Nd object using PDL::IO::Misc::rcols().
$ccs = ccs_readmm($filename_or_fh) $ccs = ccs_readmm($filename_or_fh,\%opts)
Options %opts:
start => $i, ##-- index of first element (like perl $[); default=1 for MatrixMarket compatibility header => $bool, ##-- attempt to read embedded CCS header from file (default=do) sorted => $bool, ##-- assume input data is sorted (default=0) nomagic => $bool, ##-- don't check for matrix market magic header (default:do)
Read a Matrix Market dense array text file as a dense pdl using PDL::IO::Misc::rcols().
$pdl = readmm($fname) $pdl = readmm($fname,\%opts)
Options %opts:
nomagic => $bool, ##-- don't check for matrix market magic header (default:do)
Perl by Larry Wall.
PDL by Karl Glazebrook, Tuomas J. Lukka, Christian Soeller, and others.
Bryan Jurish <moocow@cpan.org>
Copyright (C) 2015-2022, Bryan Jurish. All rights reserved.
This package is free software, and entirely without warranty. You may redistribute it and/or modify it under the same terms as Perl itself.
perl, PDL, PDL::CCS::Nd, PDL::CCS::IO::FastRaw, PDL::CCS::IO::FITS, PDL::CCS::IO::LDAC, the matrix market format documentation at <http://math.nist.gov/MatrixMarket/formats.html> ...
| 2022-12-02 | perl v5.36.0 |