How to find the most non-missing cases with selected variables and observations

[xu yr]

Dear All,

My data set contains multiple variables, each of them contains missing values, I want to have a subset with available data on each remaining variable. Is there a way that I can know which variables and observations to keep so that I will have a subset with the most non-missing cases.

[Nick Cox]

Repeated post. Please follow https://www.statalist.org/forums/for...d-observations if interested.