Finding missing patterns of variables in a dataset using PROC MI

data exercise; input Name $ X Y Z; cards; John 22 22 33 Mary . 24 15 Ken 15 . 15 Ed 21 32 13 Suzie . 14 25 Luke 11 21 21 ; run; proc mi data=exercise out=Ken; var X Y Z; ods output misspattern=Paul; run;