Projects / PDL


The PerlDL project aims to turn Perl into an efficient numerical language for scientific computing. The PDL module gives standard Perl the ability to compactly store and speedily manipulate the large N-dimensional data sets which are the bread and butter of scientific computing. e.g. $a=$b+$c can add two 2048x2048 images in only a fraction of a second. The aim is to provide tons of useful functionality for scientific and numeric analysis.


Recent releases

  •  31 Mar 2011 14:06

    Release Notes: wmpeg() from PDL::IO::Pic now uses the new ffmpeg back-end and can create many additional file formats beyond MPEG alone, including MP4 and animated GIF. The deprecated Karma imaging library support code has been removed from the PDL distribution. There were lots of improvements to the documentation and overall usability. Many bugs were fixed.

    •  11 Jan 2005 16:29

      Release Notes: This is mainly a bugfix release with a number of small enhancements. FITS I/O now supports binary tables. Many improvements were made to the PLplot interface. PDL::Transform was upgraded. A new "pdl" command-line entry to the perldl shell allows #!-style scripting (so you can re-use your journal files verbatim). Various improvements were made for 64-bit systems. This release also deprecates the use of the 5.6 versions of perl. The use of the 5.8 series is recommended.

      •  20 Jan 2004 16:49

        Release Notes: This is mainly a bugfix release. The code has been updated to remove the warnings produced by perl 5.8.1. The PLplot interface has been updated for version 5.2.1. The m51.fits file has been replaced with a freely-distributable image from the Hubble Heritage archive.

        •  05 Jun 2003 00:17

          Release Notes: This release requires Perl 5.6.0 and the Filter and Text::Balanced modules. Highlights include the improved slicing syntax (PDL::NiceSlice), powerful N-dimensional indexing and slicing, improved support for GSL, support for the PLPlot graphics library, coordinate transformation and image resampling, and the ability to use mutli-line constructs in the perldl shell.

          •  01 Oct 2002 02:50

            Release Notes: PDL now compiles with perl 5.8.0. Speed improvements were made when generating piddles from a Perl array reference. PDL storage/retrieval is now possible using the PDL::IO::Storable module. The GNU Scientific Library Special Functions are now available from the PDL::GSL::SF module, and the % operator now matches the behavior of the Perl % operator.


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