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n7
Calcite | Level 5 n7
Calcite | Level 5

I am trying to find the equivalent of the Stata code "egen group" in SAS. The goal is: I have three variables x, y, and z. I want to create a new variable which will assign a different ordinal number for each combination of values of x, y, and z. How can I do this in SAS?

1 ACCEPTED SOLUTION

Accepted Solutions
Shmuel
Garnet | Level 18

With hope I understand you correctly, use next code:

proc sort data=have; by x y z; run;
data new;
 set have;
  by x y z;
      retain key;
      if first.z then key+1;
run;

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1 REPLY 1
Shmuel
Garnet | Level 18

With hope I understand you correctly, use next code:

proc sort data=have; by x y z; run;
data new;
 set have;
  by x y z;
      retain key;
      if first.z then key+1;
run;

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