A common practice to reduce the size of the panel sample (to reduce the time that Stata process the data) is to delete the observation where one of the variables gets a missing value (Stata will ignore this observation anyway).
So, let's say I have a dataset of 40 variables, but I want to delete the observation where any of these variables contain missing: x1, x2, x5, x6
Can you tell me how to do that?
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