Please help me with a PROC SUMMARY (only) statement to get the volume by category, weighted volume by category, mean of score by category.
Reason I want to use PROC SUMMARY is because I have other code using the same and PROC SUMMARY produces other metrics.
data test;
length category score wt 8;
input category score wt;
infile datalines dlm=",";
datalines;
1,67,2
1,50,5
1,55,6
2,56,6
2,68,5
3,70,5
4,73,8
run;
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