topic Re: Middle Observation in SAS Data Science

Middle Observation

light — Thu, 14 Apr 2016 03:22:06 GMT

For the given data set with uneven number of observations, either character or numeric, how can I find and display the middle observation?

Thank you greatly 🙂

Re: Middle Observation

Reeza — Thu, 14 Apr 2016 03:25:03 GMT

Sample data and expected output. In the post rather than an attachment or image.

Re: Middle Observation

light — Thu, 14 Apr 2016 03:30:37 GMT

I am a bit confused... I know how to find the middle number in a numerical data set, however if I decide to use character variables, I am getting missing values in output.

Thank you.

Re: Middle Observation

PGStats — Thu, 14 Apr 2016 03:38:18 GMT

Use nobs= to get the number of obs. Get the mid obs with point= option :

data test;
do txt = "abc","def","ghi","jkl","mno";
    output;
    end;
run;

data mid;
if 0 then set test nobs=n;
n = ceil(n/2);
set test point=n;
output;
stop;
run;

Re: Middle Observation

light — Thu, 14 Apr 2016 03:58:18 GMT

Thank you. That works.