To expand on ant9000's answer, his function will help in making a comparison tag. He's building a string which has all the numbers in fixed-width columns so that the string comparison operator will naturally order according to numerical fields. To use it to sort by those tags, you'd apply the schwartzian transform: 

my @keys_sorted_by_converted_value =
       map { $_->[0] }
       sort { $a->[1] cmp $b->[1] }
       map { [ $_, fmt($hash{$_}) ] }
       keys %hash;

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In reply to Re: Re: sort hash by value by halley
in thread sort hash by value by Anonymous Monk

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