/* make sure location1.txt and location2.txt are in the root directory of your C: drive */
data one;
infile 'c:\location1.txt';
input loc $ rep 5 trt 6-7 dog cat pig;
data two;
infile 'c:\location2.txt';
input loc $ rep 5 trt 6-7 dog cat pig;
data one; set one;
proc sort; by loc rep trt;
data two; set two;
proc sort; by loc rep trt;
data three; merge one two; by loc rep trt;
proc print;
run;