I haven't been able to make shiftleft work the way I want it. It may not even be the right command, I can't understand the POD documentation for it.
What I want: perldl> $a=sequence(5); p$a; [ 0 1 2 3 4 ] perldl> $c=<some PerlDL syntax on $a>; p$c; [ 1 2 3 4 0 ] What I've tried: perldl> $a=sequence(5); $b=pdl(1); perldl> $c=shiftleft($a,$b,0); Undefined subroutine &main::shiftleft called perldl> $c = shiftleft $a, $b, 0; Usage: PDL::shiftleft(a,b,c,swap) (you may leave temporaries or output variables out of list) perldl> $c = $a << $b; p$c; [0 2 4 6 8] perldl> $a->inplace->shiftleft($b,0); p$a; [0 2 4 6 8] Making $b a Perl scalar doesn't seem to help. Can someone explain and/or provide a full example of the usage of shiftleft and/or provide a tip for shifting an array? ActivePerl 5.10 PDL 2.4.3 Thanks! --Art
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