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marleeakerson
Calcite | Level 5

Hello, 

 

I am trying to create sums by group and create a new variable that is a count of all the observations with the same ID number. See sample data set below: 

 

ID    X      Y
1    10     15

1    7       19

1    13      11

2    10     15

2    11    17

3    35    21

3    12    8

3     11    7

I want the total aggregate sums of X and Y for each ID group, and a new variable that is a count of all the entries for each ID number (for example count for ID 1 would be 3, ID 2=2, ID 3= 3)

 

Thank you!

2 REPLIES 2
PaigeMiller
Diamond | Level 26

This is a job for PROC SUMMARY

 

proc summary data=have nway;
    class id;
    var x y;
    output out=want sum=sum_x sum_y n(x)=count;
run;
--
Paige Miller
ed_sas_member
Meteorite | Level 14

Hi @marleeakerson 

 

You can use either PROC MEANS / SUMMARY or PROC SQL or even PROC TABULATE:

proc means data=have noprint;
	var x y;
	class id;
	ways 1;
	output out=want (drop=_:) n=count sum=x_sum y_sum;
run;

/* OR */ 

proc sql;
	create table want as
	select id, count(id) as count, sum(x) as x_sum, sum(y) as y_sum
	from have
	group by id;
run;

/* OR */ 

proc tabulate data=have out=want (drop=_:);
	var x y;
	class id;
	tables id, n x*sum y*sum ;
run;

 

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