Changing month-year variable from character to date format

[ama220]

I concatenate separate month and year variables into a single month-year variable, but the resulting variable is in a character format. I am trying to convert that into a SAS date variable to be able to calculate intervals with other date variables.

I am successful in the first step, but unable to get the month-year variable into a SAS date format. Below are the error I am getting and the SAS output. Any help would be much appreciated.

  Data two;

  set one;

     date=cats(aamn, aayear);

      put date= ;

    format date mmyy7.; run; 

ERROR 48-59: The format $MMYYS was not found or could not be loaded.

Obs	date	AAMN	AAYEAR
1	32003	3	2003
2	12003	1	2003

[Astounding]

A month and a year is not enough to convert to a SAS date.  Dates in SAS refer to a specific day.  If you are willing to use the first day of the month, you could use:

sasdate = input( cats(aamn, '01', aayear), mmddyy8.);

format sasdate yymmdd10.;

[ballardw · Accepted solution]

or maybe

sasdate= mdy(aamn,1,aayear);

format sasdate mmyyd.;

[ama220]

Thank you, your code worked for me. 

[ama220]

Thanks, your code is great. Because I needed to limit to the month and year, I found the other code more appreciate to my needs. I really appreciate your help.