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How to create a variable based on missing date information

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Super Contributor
Posts: 272

How to create a variable based on missing date information

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

Super User
Posts: 17,840

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

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. 

Respected Advisor
Posts: 4,651

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

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;
PG
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