A fellow on the SAS Google Group posted a great chunk of code for me that will do a frequency count of words for a dataset with observations of textual data.

Here is the code below:

/* test data set */
data comments;
length obs 8 comment $1000.;
length p 8 c $1.;
drop p c;
input obs @@;
/* skip the blanks */
do while (c='’);
input c $char1. @@; /* guess what is wrong with $1.? */
end;
/* read one char at a time */
p = 1;
substr(comment,p,1) = c;
do until (c=’#');
p + 1;
input c $char1. @@;
substr(comment, p, 1) = c;
end;
substr(comment, p, 1) = ” “; /* get the # out */
/* release the input line */
input;
cards;
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;
run;

/* parse each word into an obs */
data words;
length obs no 8 word $16.; /* will be truncated if longer */
keep obs no word;
set comments;
no = 0;
do while(1);
no + 1;
word = upcase(scan(comment, no, ” .,!?”));
if word=”" then leave;
output;
end;
run;

proc freq data=words;
tables word/ out=counts;
run;

data test;
set counts;
file print;
if word>=’A';
n + 1;
drop n;
if mod(N,3)=1 then put; /* changed to 3 to narrow */
put word $10. count 5. +3 @;
run;