topic How to create a variable based on missing date information in SAS Programming

How to create a variable based on missing date information

knveraraju91 — Fri, 22 Jul 2016 01:42:30 GMT

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

Re: How to create a variable based on missing date information

Reeza — Fri, 22 Jul 2016 01:47:07 GMT

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.

Re: How to create a variable based on missing date information

PGStats — Fri, 22 Jul 2016 04:16:44 GMT

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;