Hello everyone, The question I have is I am cleaning data for use with a predictive model and one of the tables I am looking at has to do with disease cases. I have gender, disease, year, age group, population as variables. The problem I am running into is : for example I have osteoporosis disease with 20,000 cases for males and 20,000 cases for females. For the "all" gender there is missing value, how can I make this calculation?
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