Given a matrix or data frame with character ACGT SNP values, convert them to numeric values with the major allele coded as 0 and the minor allele as 1.
Usage
convert.variants.to.numeric(variants)
Arguments
variants
Data frame with four header columns. The SNPs must be in ACGT format in columns 5 through ncol(snps).
Value
Data.frame of the same dimentions as the snps argument, but with the alleles converted to 0 or 1.
Details
This function is used before calling plot.alleles() to convert the SNPs into a numeric form suitable for plotting.