BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
bnarang
Calcite | Level 5

Hi

I have a very simple sorted data with observation as ID and Indicator, I would like to form a cluster for each ID with increments for each group of records. It should reset for every account type. I have thought a lot about it but no success so far. Please help . CLUSTER IS Required Output

 

ID         Indicator   Cluster

A11        .               .

A11        .               .

A11        1              1

A11        1              1

A11        1              1

A11        .

A11        .

A11        1              2

A11        1              2

A11        .

A11        1             3

A11        1             3

B11        .

B11        1             1

B11        1             1

B11        1             1

B11        .

B11        1             2

B11         .

B11        .


1 ACCEPTED SOLUTION

Accepted Solutions
Tom
Super User Tom
Super User

Use BY processing with NOTSORTED option.  To zero out the CLUSTER number when indicator is missing you will need a second variable.

data have ;

input id $ indicator want;

cards;

A11 . .

A11 . .

A11 1 1

A11 1 1

A11 1 1

A11 . .

A11 . .

A11 1 2

A11 1 2

A11 . .

A11 1 3

A11 1 3

B11 . .

B11 1 1

B11 1 1

B11 1 1

B11 . .

B11 1 2

B11 . .

B11 . .

run;

data want ;

  set have ;

  by id indicator notsorted ;

  if first.id then ncluster=0;

  if first.indicator and not missing(indicator) then ncluster+1;

  if not missing(indicator) then cluster=ncluster;

  put id indicator want cluster;

  drop ncluster ;

run;

View solution in original post

2 REPLIES 2
Tom
Super User Tom
Super User

Use BY processing with NOTSORTED option.  To zero out the CLUSTER number when indicator is missing you will need a second variable.

data have ;

input id $ indicator want;

cards;

A11 . .

A11 . .

A11 1 1

A11 1 1

A11 1 1

A11 . .

A11 . .

A11 1 2

A11 1 2

A11 . .

A11 1 3

A11 1 3

B11 . .

B11 1 1

B11 1 1

B11 1 1

B11 . .

B11 1 2

B11 . .

B11 . .

run;

data want ;

  set have ;

  by id indicator notsorted ;

  if first.id then ncluster=0;

  if first.indicator and not missing(indicator) then ncluster+1;

  if not missing(indicator) then cluster=ncluster;

  put id indicator want cluster;

  drop ncluster ;

run;

bnarang
Calcite | Level 5

Many Thanks Tom. Don't know the usage of NotSorted option but will read over the internet.

Thanks again

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
  • 804 views
  • 0 likes
  • 2 in conversation