Dear all, I just started to learn and use SAS… I’am currently facing a problem and hope someone would be able to help me. I have a database of the following form : What I would like is to create a table that will contains the number of observation per group. So something like : I am trying to work with a loop that will complete progressively the table but after many trials i am unable to do so… Does someone has an idea ? Thank you very much
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