Fstat {Geneland} | R Documentation |
Computes F statistics according to Weir and Cockerham's estimators. Missing values are allowed and accounting for in the computation of Fst. The presence of missing values involves a downward bias in the computation of Fis. This function should not be used on haploid data.
Fstat(genotypes,npop,pop.mbrship,ploidy)
genotypes |
Genotypes of individuals. A matrix with one line per individual and 2 columns per locus |
npop |
total number of popluation present in the dataset |
pop.mbrship |
Vector of integers giving the population membership for each individual |
ploidy |
Integer: 1 or 2 (default is 2) under development. Do not use for haploid data. |
A list with components
Fis |
A vector of estimations of within-population Fis |
Fst |
A matrix of estimations the pairwise population Fst. (Only the upper triangular part is returned). |
Arnaud Estoup for original code in Turbo Pascal.
Translation in Fortran and interface with R by Gilles Guillot
Weir, B.S. and C.C. Cockerham, Estimating F-statistics for the analysis of population structure, Evolution, 1984, vol. 38, 1358-1370.