No, that's correct. What was the the second code (shown below) returned pairs of words as an array. You might want to take a peek at Data::Dumper to easily display structures. In any case, I've since modified my post such that the code does what you want. 

my @words;

while ($content =~ /($word)/g) {
   push(@words, $1);
}

my @words_bi;
my @words_tri;

foreach (0..$#words) {
   next if $_ < 1;
   push(@words_bi,  [ @words[$_-1 .. $_] ] );

   next if $_ < 2;
   push(@words_tri, [ @words[$_-2 .. $_] ] );
}

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In reply to Re^3: Word density by ikegami
in thread Word density by Anonymous Monk

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