BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
PatrykSAS
Obsidian | Level 7

Hello. I would like to calculate the number of days between dates but for column operations. I have the following data:

ID              DATE

100           2020-07-01

100           2020-07-08

100           2020-07-13

110           2020-06-25

110           2020-06-29

I'd like to achieve data like:

ID              DATE                 DAYS

100           2020-07-01        .

100           2020-07-08        7

100           2020-07-13        5

110           2020-06-25        .

110           2020-06-29        4

Can you help with solution?

1 ACCEPTED SOLUTION

Accepted Solutions
PeterClemmensen
Tourmaline | Level 20
data have;
input ID DATE :yymmdd10.;
format date yymmdd10.;
datalines;
100 2020-07-01
100 2020-07-08
100 2020-07-13
110 2020-06-25
110 2020-06-29
;

data want;
   set have;
   by ID;
   days = dif(date);
   if first.ID then days=.;
run;

View solution in original post

1 REPLY 1
PeterClemmensen
Tourmaline | Level 20
data have;
input ID DATE :yymmdd10.;
format date yymmdd10.;
datalines;
100 2020-07-01
100 2020-07-08
100 2020-07-13
110 2020-06-25
110 2020-06-29
;

data want;
   set have;
   by ID;
   days = dif(date);
   if first.ID then days=.;
run;

sas-innovate-2024.png

Available on demand!

Missed SAS Innovate Las Vegas? Watch all the action for free! View the keynotes, general sessions and 22 breakouts on demand.

 

Register now!

SAS Enterprise Guide vs. SAS Studio

What’s the difference between SAS Enterprise Guide and SAS Studio? How are they similar? Just ask SAS’ Danny Modlin.

Find more tutorials on the SAS Users YouTube channel.

Click image to register for webinarClick image to register for webinar

Classroom Training Available!

Select SAS Training centers are offering in-person courses. View upcoming courses for:

View all other training opportunities.

Discussion stats
  • 1 reply
  • 328 views
  • 0 likes
  • 2 in conversation