my data set contains 16598 individuals, one per row. each of these individuals are members of a gym of which there are 1241 gyms, each gym gets an ID label which is a number . i want to extract all the individuals belonging to some of the gyms only. i have a list of the gym ID labels (eg 1011, 1043 etc), in total there are 1214 gyms and i want to pull all the data on the individual members of 1019 of those gyms . how do i filter the 16598 by a list of 1019 identifiers? any help appreciated
thank in advance
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