topic Re: Compute days between dates in SAS Programming

Compute days between dates

127 — Wed, 18 Jul 2018 17:41:58 GMT

How do I compute the # of days from date to date.

I have sample data:

Obs. date1 date2 date3 date4

1 1/1/2010 2/10/2010 3/10/2010 4/5/2010

2 5/3/2011 5/5/2011 5/15/2010

I want output data:

Obs. date1 date2 date3 date4 daysdif1 daysdif2 daysdif3

1 1/1/2010 2/10/2010 3/10/2010 4/5/2010 40 28 26

2 5/3/2011 5/5/2011 5/15/2010 2 10

Any help using would be great.

thanks

Re: Compute days between dates

novinosrin — Wed, 18 Jul 2018 17:55:39 GMT

data have;
infile cards truncover;
input Obs  (date1       date2           date3        date4) (:mmddyy10.);
format date: mmddyy10.;
cards;
1       1/1/2010   2/10/2010   3/10/2010  4/5/2010
2       5/3/2011  5/5/2011      5/15/2011
;

data want;
set have;
array t(*) date:;
array daysdif(3);
do _n_=2 to dim(t);
daysdif(_n_-1)=t(_n_)-t(_n_-1);
end;
run;

Re: Compute days between dates

127 — Wed, 18 Jul 2018 19:25:42 GMT

Perfect, thanks so much!