I have a dataset that looks like the following:   ID      MONTH      VAR 1       1                 2 1       2                 2 1       3                 1 2       1                 2 2       2                 2 2       3                 2  3       1                 1 3       2                 1  3       3                 1    I need to get a count of ID's where VAR=1 for at least one of the months. I'm not a very advanced user. Is there code that could easily accomplish what I'm looking for? ... View more