Hi, I have this querry... i have a dataset like this and i want to flag it where i have consecutive values. data bob; input subjid lbtestcd$ lbdy flag1$; datalines; 101 alt 1 e 101 alt 2 . 101 alt 3 e 101 alt 4 e 101 ast 1 e 101 ast 3 e 101 ast 4 . 101 ast 5 e 102 alt 1 e 102 alt 2 . 102 alt 3 e 102 alt 4 e 102 ast 1 e 102 ast 3 e 102 ast 4 . 102 ast 5 e 102 ast 6 e ; run; i want an output like i want to flag consecutive 'e' values for consecutive visits by subject and test. could you please help me out thanks.
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