Number of decimals until which marker positions are
rounded. Partially specifies marker density on the chromosome.
nLoc
Maximal number of snp loci on genome, default is number of
available positions on genome.
pSnp
Optional,if specified the snp positions. Default:
uniform distribution of loci over the whole genome. Consequence will
be that loci have allele frequency equal to one. If NULL, positions
will be randomly sampled for each haplotype and allele frequencies
will be close to 0, depending on \(nLoc / (genDist*10^{nDec})\).