Hi Everyone, I'm looking to sum two variables ('arrivals' and 'departures') into one new variable ('total_activities'). The data set contains about 15,000 rows and I have four datasets to work with, so I wasn't sure if there was a way to do this without using codes and cards? I can always add a new column in excel and re-import the data, but I was hoping to avoid that. Thanks in advance!
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