You use the SUBSTRNG routine to find a string of characters within another string of characters. When you run this routine with the Data Comparison Calculator, you are evaluating two strings (Field 1) to see if they are contained in one or both fields in a second set of strings (Field 2).
The Data Comparison Calculator determines the scores for each comparison and displays the highest score. (Scores are based on the location of the string within the other field.)
To run the SUBSTRNG routine with the Data Comparison Calculator