Hello, I have a binary variable for each id like this: ID Binary wanted(index) 1 0 0 1 0 0 1 1 0 1 0 1 1 0 2 1 0 3 2 0 0 2 1 0 2 0 1 3 1 0 3 0 1 ...................... So assuming I have only first two variables,how I can generate third wanted(index)? Note:Within each id, if binary before 1 is 0 then index is 0,then,when reaches 1,index starts from 0 and assigns index counts for each 0 after 1. For instance, for ID 3 there are not 0 before 1 at binary, therefore it starts indexing directly. Thanks.
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