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 / sas@freek
data family;
input parent $ child $;
datalines;
A B
B C
C D
D E
E F
F G
G H
H I
;
run;
data family_new(drop=parent child);
set family;
parent1=lag(parent);
child1=lag(child);
grand_child=child;
if _n_ ge 2;
run;
proc print data=family_new;
var parent1 grand_child;
run;
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