I am dealing with a situation where I have 2 different date formats. One is a full date formatted as yymmdd8. The other is just a year formatted as BEST12. I need to do a subtraction to calculate age at the event and select cases higher than a certain age. Please advise a solution.
You just need to define what your algorithm is for defining age at event. The simplest is to just use the year from the event.
age_at_event = year(event_date) - year_of_birth ;
One way is to transform YEAR into a SAS date, say the first of April of that year with MDY(4, 1, YEAR) and then use function YRDIF to calculate the age. Assuming DATE is greater than MDY(4, 1, YEAR) :
if yrdif( mdy(4, 1, year), date, "AGE" ) > ageLimit;
PG
You just need to define what your algorithm is for defining age at event. The simplest is to just use the year from the event.
age_at_event = year(event_date) - year_of_birth ;
Tom,
This was very helpful and it solved the problem. Thank you for your time. I really appreciate the help.
Sanket
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 the difference between classical and Bayesian statistical approaches and see a few PROC examples to perform Bayesian analysis in this video.
Find more tutorials on the SAS Users YouTube channel.