count_snps: Count SNPs in an f2-statistics array

In uqrmaie1/admixtools: Inferring demographic history from genetic data

Count SNPs in an f2-statistics array

Description

This function adds up all block lengths (number of SNPs in each SNP blocks), which are stored in the names along the third dimension of the array. When the f2-statistics were computed while setting maxmiss to values greater than 0, it is possible that not all f2-statistics are based on the same number of SNPs. In that case, the value returned by this function is merely an upper bound on the number of SNPs used.

Usage

count_snps(f2_blocks)

Arguments

f2_blocks

A 3d array of per block f2-statistics

Value

The total number of SNPs across all blocks

See Also

f2_from_geno, f2_from_precomp

uqrmaie1/admixtools documentation built on Nov. 3, 2024, 12:56 a.m.