topic Re: How to fill the gap between two observations in SAS Programming

How to fill the gap between two observations

ZZB — Sun, 07 Jan 2018 15:07:53 GMT

How to replace the "missing value ." between 2000/01/02 and 2000/02/15 with the value "5" on 2000/01/01?

ID DATE Variable

01 2000/01/01 5

01 2000/01/02 .

01 2000/01/03 .

01 2000/01/04 .

01 2000/01/05 .

.................

01 2000/02/15 .

01 2000/02/16 7

Assuming that there are many ID like '01' and many case like missing value between 2000/01/02 and 2000/02/15. Is there any efficient way to replace these missing value with the most recently available value like '5' in this case before new value like '7' is available?

Re: How to fill the gap between two observations

PeterClemmensen — Sun, 07 Jan 2018 15:30:07 GMT

data have;
input ID$ DATE:yymmdd10. Variable;
format DATE yymmdd10.;
datalines;
01 2000/01/01 5
01 2000/01/02 .
01 2000/01/03 .
01 2000/01/04 .
01 2000/01/05 .
01 2000/02/15 .
01 2000/02/16 7
;

data want;
   update have(obs=0) have;
   by ID;
   output;
run;

Re: How to fill the gap between two observations

mkeintz — Sun, 07 Jan 2018 15:59:16 GMT

You'll find the answer to the antecedent to this topic in How to merge daily and quarterly dataset