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PDL::Impatient 2.4.3

Date Added: March 12, 2010 | Visits: 538

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PDL::Impatient is a PDL for the impatient. SYNOPSIS A brief summary of the main PDL features and how to use them. Perl is an extremely good and versatile scripting language, well suited to beginners and allows rapid prototyping. However until recently it did not support data structures which allowed it to do fast number crunching. However with the development of Perl v5, Perl acquired Objects. To put it simply users can define their own special data types, and write custom routines to manipulate them either in low level languages (C and Fortran) or in Perl itself. This has been fully exploited by the PerlDL developers. The PDL module is a complete Object-Oriented extension to Perl (although you dont have to know what an object is to use it) which allows large N-dimensional data sets, such as large images, spectra, time series, etc to be stored efficiently and manipulated en masse. For example with the PDL module we can write the perl code $a=$b+$c, where $b and $c are large datasets (e.g. 2048x2048 images), and get the result in only a fraction of a second. PDL variables (or piddles as they have come to be known) support a wide range of fundamental data types - arrays can be bytes, short integers (signed or unsigned), long integers, floats or double precision floats. And because of the Object-Oriented nature of PDL new customised datatypes can be derived from them. As well as the PDL modules, that can be used by normal perl programs, PerlDL comes with a command line perl shell, called perldl, which supports command line editing. In combination with the various PDL graphics modules this allows data to be easily played with and visualised..

Requirements: No special requirements

Platforms: Linux

Keyword: Data, Libraries, Pdl, Pdlimpatient, Perl, Programming

Users rating: 0/10

License: Freeware

Size: 2.1 MB

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