[R] merge two data sets

[kayj]

I would like to merge “data1 “that contains 100 unique ID’s with  another
data set “data 2” with 150 ID’s and the age of those individuals ( the ID in
data1 is a subset of the ID in data 2) I  would like to merge these data1
with data2 and have the result of the merge to have the ID ordered as in
data1.

Can this be done in R?


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