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use strict;
use warnings;
...
frequency of each word in each paragraph. I thought it is words-by-wor
+ds matrix,
but it's wrong. It's words-by-paragraph matrix. Thank you very much! P
+eace of
the world.

                 100000 cell data delimited each file first frequency 
+frequent it's matrix more much need numbers paragraph peace shows tex
+t than thank thought very which with word words words-by-paragraph wo
+rds-by-words world wrong 
Paragraph     1:      1    1    2              1    2     1         1 
+       1                1                 1                     1    
+2    1                             1    1     2 
Paragraph     2:                          1    1                      
+                                                    1 
Paragraph     3:                               2                    1 
+            2      3         1    1                 1     1     1    
+           1       1    1     1         1                        1   
+           1     1     1