Dear All
My Data is as follows
ID VarA Cat
A 5 1
A 6 1
A 4 1
B 3 1
B 7 1
D 6 2
D 1 2
E 7 2
G 4 3
I want to keep just one ID from each CAT
So my data should look like
ID VarA Cat
A 5 1
B 3 1
D 6 2
E 7 2
G 4 3
Can someone please help
Thanks in advance
Randy
You can use first. logic, for example:
data one;
input ID $ VarA Cat;
cards;
A 5 1
A 6 1
A 4 1
B 3 1
B 7 1
D 6 2
D 1 2
E 7 2
G 4 3
;
data new;
set one;
by id;
if first.id then output;
run;
proc print;
run;
data want;
set have;
by cat id;
if first.id; /* Subsetting IF */
run;
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