The closest I got to was something like 
use PDL;
my $u = pdl [1,2,3,4];
my $dim = 4;
for(my $i=0; $i<$dim; $i++)
{
  print $u->flat->index($i), "\n";
}

[download]
Also as I convert the list [1,2,3,4] to the piddle $u, can I get back a list (or a list of lists for a matrix) from $u?

In reply to How to iterate through a PDL piddle? by arrac

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