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sasphd
Lapis Lazuli | Level 10

hello 

I want to select the first observation by secid and grp. I try this but it give me the first observation by secid only

data first_by_group;
	set rolling12;
	by secid grp;
 
	if first.secid and first.grp then output;
run;
1 ACCEPTED SOLUTION

Accepted Solutions
PaigeMiller
Diamond | Level 26
if first.grp then output;

This give the first observation whenever GRP changes.


The way you had it written, you only get the first observation when BOTH secid and grp change.

--
Paige Miller

View solution in original post

1 REPLY 1
PaigeMiller
Diamond | Level 26
if first.grp then output;

This give the first observation whenever GRP changes.


The way you had it written, you only get the first observation when BOTH secid and grp change.

--
Paige Miller

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