1DELTA(1)              User Contributed Perl Documentation             DELTA(1)
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NAME

6       PDL::Delta - PDL changes between V1.0 and V2.0
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DESCRIPTION

9       This file is an attempt to list the major user-visible changes between
10       PDL versions 1.0 and 2.0.
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Core Changes

13   Piddles are not hashes any more:
14           $a = zeroes 10,10;
15           $$a{FOO} = "bar"
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17       doesn't work. They are currently scalar references (to opaque C
18       structures in finer terms) because of speed as well as syntactic
19       issues. If you want to have a hash, use
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21           $a->hdr()
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23       which returns a reference to an anonymous hash. Also, subclassing works
24       if you store a piddle in the hash member ``PDL''.
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26       There are also many core enhancements to support Dataflow and Slicing
27       tricks, but these do not introduce any incompatibilities.
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29   Incompatible Changes vs 1.11
30       rgrep
31           Order of the arguments has changed.
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33       copy method
34           No longer copies the header. This may not be a misfeature.
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Documentation Changes

37       Many of the base and library pods were updated.
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SEE ALSO

40       The Changes file for exhaustive details on what changed.
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42       The INSTALL file for how to build PDL.
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44       The README file for general stuff.
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HISTORY

47       pdldelta was inspired by perldelta  man page in the Perl 5.004
48       distribution.
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52perl v5.28.1                      2018-05-05                          DELTA(1)
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