I do not yet know of a specific module for finding local maxima. However, for global maxima and minima use List Util. 
use List::Util qw(max min);

my @array = qw(5 7 3 25 10 15 8);

my $max = max(@array);
my $min = min(@array);

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- Miller

In reply to Re: finding local minima/maxima for a discrete array by wind
in thread finding local minima/maxima for a discrete array by Anonymous Monk

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