Suppose there is a SAS dataset with following values -
Parent Child
A B
B C
D E
F G
G H
H I
and so on…..
This goes onto 1000s of observations/rows.
Now how do we identify from this dataset Grandparents and
Grandchildrens ?
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Answer Posted / jayant
data tet;
input par $ child $;
datalines;
A B
B C
C D
E F
;
run;
data tet1;
set tet;
grand=lag(par);
drop par;
run;
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