Perhaps this will do what you want? 
push(@words_bi,  $words[$_-1] . $words[$_]  );

[download]
Update: Oops, the words will be stuck together. My bad. 
push(@words_bi,  $words[$_-1] . " " . $words[$_]  );

[download]


"Age is nothing more than an inaccurate number bestowed upon us at birth as just another means for others to judge and classify us"

sulfericacid

In reply to Re^5: Word density by sulfericacid
in thread Word density by Anonymous Monk

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