Hi there,
I have a dataset with a number of same id and different observations for another dummy variable. I hope to make it so that there's one row for each id and the count becomes a sum of all of the observations. Such as
1 1
2 1
3 0
1 1
4 1
2 1
3 1
4 0
5 0
1 1
Becoming
1 3
2 2
3 1
4 1
5 0
Gratefully,
SAS 9.3
SAS knows how to do that:
proc summary data=have nway;
class id;
var dummy;
output out=want (keep=id total) sum=total;
run;
Thank you for this tip! I forgot to mention that I'm hoping to keep other variables in the summary as well. Any ideas to achieve that?
Kindly,
Matt
You can keep other variables. But you have to choose from among more than one value. When you get a sum, that comes from many observations, but only one of the values of those other variables can be saved.
Take a look at MINID and MAXID. You can select whether you want the minimum or the maximum value of the "other" variables kept in the summary data set.
something like below
proc sql;
select id, sum(secondcolumn) as secondcolumn
from yourtable
group by id;
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