utils.recalc.metrics for recalculating all metrics,
utils.recalc.callrate for recalculating CallRate,
utils.recalc.freqhomref for recalculating frequency of homozygous
reference, utils.recalc.avgpic for recalculating AvgPIC,
utils.recalc.freqhet for recalculating frequency of heterozygotes,
gl.recalc.maf for recalculating minor allele frequency,
gl.recalc.rdepth for recalculating average read depth