Pdls

PDL::MatrixOps Perl module contains some useful Matrix operations. SYNOPSIS $inv = $a->inv; $det = $a->det; ($lu,$perm,$par) = $a->lu_decomp; $x = lu_backsub($lu,$perm,$b); # solve $a x $x = $b PDL::MatrixOps is PDLs built-in matrix manipulation code. It contains utilities for many... Platforms: *nix

PDL::NiceSlice Perl module contains a nicer slicing syntax for PDL. SYNOPSYS use PDL::NiceSlice; $a(1:4) .= 2; # concise syntax for ranges print $b((0),1:$end); # use variables in the slice expression $a->xchg(0,1)->(($pos-1)) .= 0; # default method syntax $idx = long 1, 7, 3, 0; # a... Platforms: *nix

PDL::IO::Pic is a image I/O for PDL. Image I/O for PDL based on the netpbm package. This package implements I/O for a number of popular image formats by exploiting the xxxtopnm and pnmtoxxx converters from the netpbm package (which is based on the original pbmplus by Jef Poskanzer). Netpbm... Platforms: *nix

PDL::Indexing Perl module contains a tutorial on how to index piddles. This manpage should serve as a first tutorial on the indexing and threading features of PDL. This manpage is still in alpha development and not yet complete. "Meta" comments that point out deficiencies/omissions of this... Platforms: *nix

PDL::Graphics::AquaTerm is a Perl module that provides access to the AquaTerm Mac OS-X graphics terminal. SYNOPSIS # example 1 use PDL; use PDL::Graphics::LUT; use PDL::Graphics::AquaTerm; my $x_size = 255; my $y_size = 255; aquaOpen({SIZE_X => $x_size, SIZE_Y => $y_size});... Platforms: *nix

PDL::Graphics::X is a PDL OO access to X windows. SYNOPSIS # example 1 use PDL; use PDL::Graphics::X; my $x_size = 255; my $y_size = 255; my $win1 = PDL::Graphics::X->new({SIZE_X => $x_size, SIZE_Y => $y_size}); my $a = xvals(zeroes(byte,$x_size,$y_size)); $win1->imag($a); # example... Platforms: *nix

PDL::Fit::Levmar is a Perl module with Levenberg-Marquardt fit/optimization routines. Levenberg-Marquardt routines for least-squares fit to functions non-linear in fit parameters. This module provides a PDL ( PDL::PDL ) interface to the non-linear fitting library levmar (written in C). Levmar... Platforms: *nix

PDL::IO::FITS Perl module offers a simple FITS support for PDL. SYNOPSIS use PDL; use PDL::IO::FITS; $a = rfits(foo.fits); # read a FITS file $a->wfits(bar.fits); # write a FITS file This module provides basic FITS support for PDL, in the sense of reading and writing whole FITS files.... Platforms: *nix

Chart::Scientific is a Perl module that can generate simple 2-D scientific plots with logging, errbars, etc. SYNOPSIS Procedural interface use Chart::Scientific qw/make_plot/; make_plot ( x_data => @x_values, y_data => @yvalues ); The subroutine make_plot creates a Chart::Scientific... Platforms: *nix

PDL::FFTW is a PDL interface to the Fastest Fourier Transform in the West v2.x. This is a means to interface PDL with the FFTW library. Its similar to the standard FFT routine but its usually faster and has support for real transforms. It works well for the types of PDLs for which was the... Platforms: *nix

Chart::XMGR is a Perl object for displaying data via XMGR. SYNOPSIS use Chart::XMGR; xmgr($a, { SYMBOL => plus}; use Chart::XMGR (); $xmgr = new Chart::XMGR; $xmgr->line($pdl); $pdl->$xmgr->line; xmgr($pdl, { LINESTYLE => dotted }); Provides a perl/PDL interface to the XMGR... Platforms: *nix

Chart::GRACE is a Perl object for displaying data via Xmgrace. SYNOPSIS use Chart::GRACE; xmgrace($a, { SYMBOL => plus}; use Chart::GRACE (); $grace = new Chart::GRACE; $grace->plot($pdl); xmgrace($pdl, { LINESTYLE => dotted }); Provides a perl/PDL interface to the XMGR plotting... Platforms: *nix

PDL::Primitive Perl module contains primitive operations for pdl. This module provides some primitive and useful functions defined using PDL::PP and able to use the new indexing tricks. See PDL::Indexing for how to use indices creatively. For explanation of the signature format, see PDL::PP.... Platforms: *nix