I have a long list of patterns that I need to check to see if there are matches in my data.
Which function do you recommend that would be the quickest to create code for checking for a long list of patterns?
Types of patterns I'm interested in matching are:
122Y[digit 0-9]P68A
12811[digit 0-9][digit 0-9]E
13559[digit 0-9][digit 0-9]
65G101[digit 0-9][digit 0-9]
F6364[digit 0-9][digit 0-9]-66[letter A-Z]
Thank you.
Thank you. This macro seems to work well.
Do you have any more advice with regards to using regex functions with a long list of patterns?
In addition to creating a long list of patterns to check, the list of values I'm checking for these patterns is >700,000.
Any advice for improving efficiency would be appreciated.
%macro prx(pattern);
b=prxparse("&pattern");
if prxmatch(b,serial_number)>0 then check=1;
%mend;
%prx(/^2C1522[\d][\d]$/);
Thank you.
I'm not that familiar with regex so I would suggest reposting this specifically and asking for efficiency, if you already have not.
There is a way to speed it up so that SAS is not resolving the prx every time but I don't know enough to illustrate it.
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.