invert_sdp {qtl2}

Calculate SNP genotype matrix from strain distribution patterns

Description

Calculate the matrix of SNP genotypes from a vector of strain distribution patterns (SDPs).

Usage

invert_sdp(sdp, n_strains)

Arguments

sdp

Vector of strain distribution patterns (integers between 1 and 2^n-2 where n is the number of strains.

n_strains

Number of strains

Value

Matrix of SNP genotypes, markers x strains, coded as 1 (AA) and 3 (BB). Markers with values other than 1 or 3 are omitted, and monomorphic markers, are omitted.

See Also

sdp2char(), calc_sdp()

Examples

sdp <- c(m1=1, m2=12, m3=240)
invert_sdp(sdp, 8)