begin 'update', sub {
my $pdl = ObjStore::Lib::PDL->new($near,
{ Datatype => PDL::float(), Dims => [3,3] });
$pdl->slice(":,4")->clump(2) *= 2; #or whatever
};
die if $@;
=head1 DESCRIPTION
The main thing of interest is that dimensions are arranged in memory
such that the last dimension is the most packed. For example, in a
PDL of dimensions [3,3,3] the following locations are sequential in
memory:
[2,1,0]
[2,1,1]
[2,1,2]
Whereas the follow three elements are separated by relatively large gaps:
[0,2,1]
[1,2,1]
[2,2,1]
Be aware that this memory layout convention is dependent on the
implementation of PDL. However, it is very unlikely to change.
