Hi andye,

If your lookup table is rather small, you could try this code:

#!/usr/bin/perl

use warnings;
use strict;
use PDL;

my $x = sequence(5); print "$x \n";

my @pdl_keys   =     (0,    1,   2,      3,   4);
my @pdl_values =     (101, 69,  42,  10042,  99);

my $y = zeroes(5);
foreach my $i (0..@pdl_keys-1){
    my $indx = which($x == $pdl_keys[$i]);
    $y->dice($indx) .= $pdl_values[$i];
}
print "$y \n";

[download]

I hope this helps

Cheers,

lin0

In reply to Re^3: Hash-type lookup in PDL by lin0
in thread Hash-type lookup in PDL by andye

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