I have another question to expand on this topic-can you write code in which SAS can flag an observation with duplicate/tied maximum values. Say the dataset above is:
data one;
input ID a b c d e f;
cards;
4563 1 3 12 6 15 15
568 34 583 294 493 2 4
34 4 56 3 90 1 90
;
run;

I still want to obtain the maximum of the variables (a-f) but want to flag those observations in which the max is tied as for ID 4563 and 34 so that I know those observations I need to examine in a separate dataset.

Thank you, Cara