The maximum length of stretches flanked
by non-heterzygous sites that are changed. If set to 1
(default) only AXA or BXB will be corrected. If set to 2, both AXA and AXYA
(or BXB and BXYB) will be corrected.
Value
A genotype object in which short miscalled stretches are
corrected if both flanking alleles match.