Basic distance frequency between two populations


New Member
I have two populations (P1,P2) of 50 000 individuals.
Each individual is described by it s frequency in each population (f1,...,f50000 for P1 and f'1,...,f'50000 for P2).
I have calculated a mean frequency and I would like to determine which individual is far from the mean and which one is close. Is there any parameter that I could use ?

Thank you in advance for your precious help