Dear,
I need to create a variable(date1) based on date variable missing information. In the second OBS date is missing and third OBS Month and date missing.
id date
1 2012-05-01
2 2012-05
3 2012
output needed.
id date1
1
2 D
3 M
Assuming your date should always be in the form YYYY-MM-DD the use LENGTHN to determine which fields are missing.
In record 3, both month and day are missing.
You could count the words, as separated by "-"
data have;
input id date :$10.;
datalines;
1 2012-05-01
2 2012-05
3 2012
;
data want;
set have;
date1 = choosec(countw(date, "-"),"M", "D", " ");
run;
proc print; run;
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