BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
Recep
Quartz | Level 8

Hello there,

 

Let me try this one more time:)

 

I couldn't come up with a relatively simple counting logic and was hoping somebody can help me:

 

In the sample table created by the code below (which includes what I want to achive as "Desired_result") I would like to create a counter variable that starts to count teams within each "event". The only trick is, the code should start counting from 1 when a team within the event is a "special team".

 

For instance in the event number 6 (i.e. row 7 to 10), the "Desired_result" gets a value of 1 starting at "row_number" 9 because within that particular "event", team C (in row_number 7) and team A (row_number 😎 are not special teams thus the counter does not start to count from 1 until "row_number" 9. Then because it starts to count at "row_number" 9 it keeps counting after even though the team C at "row_number" 10 is not a special_team. After row_number 10 the counter starts from 0 again because a new "event" starts at "row_number" 11.

 

data test;
input Row_number Event Team $ Special_team $ Desired_result;
cards;
1 1 A No 0
2 2 B Yes 1
3 3 C No 0
4 4 B Yes 1
5 4 A No 2
6 5 A No 0
7 6 C No 0
8 6 A No 0
9 6 D Yes 1
10 6 C No 2

11 7 A No 0

12 7 C No 0

run;

 

I'm pretty sure I need to use a combination of first.event and RETAIN statements together but I couldn't find a solution yet. The code below did not work for me:


data test1;
set test;
by event;

retain counter;
if first.event then do;

   if special_team='Yes' then counter=1;

   else if special_team='No' then counter=0;
else counter+1;

run;

 

Thanks a lot in advance!

 

Cheers,

1 ACCEPTED SOLUTION

Accepted Solutions
Astounding
PROC Star

This might do it.  The hard part is figuring out the logic.  If I have it correctly:

 

data test1;

set test;

by event;

if first.event then counter=0;

if special_team='Yes' or counter > 0 then counter + 1;

run;

 

Note that you don't need to retain counter explicitly.  The statement COUNTER + 1 will automatically do that for you.

View solution in original post

2 REPLIES 2
Astounding
PROC Star

This might do it.  The hard part is figuring out the logic.  If I have it correctly:

 

data test1;

set test;

by event;

if first.event then counter=0;

if special_team='Yes' or counter > 0 then counter + 1;

run;

 

Note that you don't need to retain counter explicitly.  The statement COUNTER + 1 will automatically do that for you.

Recep
Quartz | Level 8

Thanks a lot! It worked for the sample dataset. I'll apply it to my original data to see if I have to expand the example to consider a few other scenarios...

 

Recep

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

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
  • 2 replies
  • 885 views
  • 0 likes
  • 2 in conversation