calc_raw_geno_freq: Calculate genotype frequencies from raw SNP genotypes

In rqtl/qtl2: Quantitative Trait Locus Mapping in Experimental Crosses

Calculate genotype frequencies from raw SNP genotypes

Description

Calculate genotype frequencies from raw SNP genotypes, by individual or by marker

Usage

calc_raw_geno_freq(cross, by = c("individual", "marker"), cores = 1)

Arguments

cross	Object of class "cross2". For details, see the R/qtl2 developer guide.
by	Indicates whether to summarize by individual or by marker.
cores	Number of CPU cores to use, for parallel calculations. (If 0, use parallel::detectCores().) Alternatively, this can be links to a set of cluster sockets, as produced by parallel::makeCluster().

Value

A matrix of genotypes frequencies with 3 columns (AA, AB, and BB) and with rows being either individuals or markers.

See Also

calc_raw_maf(), calc_raw_het(), recode_snps(), calc_geno_freq()

Examples

## Not run: 
# load example data and calculate genotype probabilities
file <- paste0("https://raw.githubusercontent.com/rqtl/",
               "qtl2data/main/DOex/DOex.zip")
DOex <- read_cross2(file)
gfreq <- calc_raw_geno_freq(DOex)

## End(Not run)

rqtl/qtl2 documentation built on March 20, 2024, 6:35 p.m.