From what I recall, it is ineffective to access list elements by index, if you have to check all elements - at least this is true for large lists. Therefore, the following might be an alternative:

my (@temps, @numbers); 
my ($ind, $maxind, $max) = (-1, -1, $num[0]);
for my $num (@numbers) {
   $ind++;
   $maxind = $ind, $max = $num if $num > $max;
}
my $maxtemp = $temps[$maxind];

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pike

In reply to Re: extracting corresponding values from another array by pike
in thread extracting corresponding values from another array by Anonymous Monk

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