PDL::Dataflow PDL::Dataflow module contains a description of the dataflow philosophy.
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Perl module dataflow PDL dataflow philosophy dataflow description philosophy

PDL::Dataflow Description

PDL::Dataflow module contains a description of the dataflow philosophy. PDL::Dataflow module contains a description of the dataflow philosophy.SYNOPSIS perldl> $a = zeroes(10); perldl> $b = $a->slice("2:4:2"); perldl> $b ++; perldl> print $a; WARNINGDataflow is very experimental. Many features of it are disabled for 2.0, particularly families for one-directional dataflow. If you wish to use one-directional dataflow for something, please contact the author first and we'll work out how to make it functional again.Two-directional dataflow (which implements ->slice() etc.) is fully functional, however. Just about any function which returns some subset of the values in some piddle will make a binding so that $a = some piddle $b = $a->slice("some parts"); $b->set(3,3,10);also changes the corresponding element in $a. $b has become effectively a window to some subelements of $a. You can also define your own routines that do different types of subsets. If you don't want $b to be a window to $a, you must do $b = $a->slice("some parts")->copy;The copying turns off all dataflow between the two piddles.The difficulties with one-directional dataflow are related to sequences like $b = $a + 1; $b ++;where there are several possible outcomes and the semantics get a little murky.Requirements:· Perl Requirements: · Perl

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