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st: How to calculate mean of other individuals on the same group
A simplified version of my data looks as follows:
ID Group X
1 a 5
2 a 7
3 a 9
4 a 8
5 b 3
6 b 4
7 b 9
I would like to generate a new variable whose value is the average of
other individual in the same group as the concerned individual. For
example, for the first individual (ID=1), this will be: (7+9+8)/3= 8.
For the 6th individual, this will be (3+9)/2=6 and so on.
I would highly appreciate if someone could suggest me a solution for this.
Thanks and Have A Great Day!
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