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How to generate a value for groups of distinct value of a variable and then drop subgroups based on the value generated?
How to generate a value for groups of distinct value of a variable and then drop subgroups based on the value generated?

Hi! I have a dataset including ppl's information in the group of family (each observation has a pid variable for family id) and I want to drop all familie if there is no teenages in that family (var age<=18). in that family. Should I use for each and loop, if then how? Thx!

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How to generate a value for groups of distinct value of a variable and then drop subgroups based on the value generated?

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