To find out the non missing values of any particular variable at any particular position with conditional statement like it should be greater than or less than SUB VISIT SBP DBP WEIGH    10001 1 129 110 59 10001 2 140 106 57 10001 3 55 10001 4 164 100 54 10001 5 92 56 10002 1 156 103 82 10002 2 80 10002 3 81 10002 4 128 92 79 10002 5 134 81 10003 1 161 78 90 10003 2 88 10003 3 85 87 10003 4 139 89 10003 5 120 77 91 10004 1 134 105 87 10004 2 85 10004 3 160 98 86 10004 4 139 88 89 10004 5 77 90 10005 1 147 102 98 10005 2 95 96 10005 3 100 99 10005 4 150 97 100 10005 5 143 85 98 10006 1 139 94 10006 2 128 90 10006 3 135 85 93 10006 4 95 10006 5 79 91 1. Get only latest non-missing values from on or before 3 visit into 3 different data sets for DBP, SBP and Weight variables. I am not able to put questions in wright words. 2. Merge all three, SBP, DBP, WEIGHT I appreciate if you guide me how to write the code. I am expecting this answer, which is marked in red color. Thanks. ... View more