| Class | Data Declaration command |
| Name | set errordrop |
| Arguments | off | on | <level> |
Toggles automatic deletion of genotypes that give rise to a Mendelian inconsistency, either an entire nuclear family (level 1), or an entire pedigree (level 2, the default).
Example:
>> set errordrop off
| << (set impute) | Up to index | >> (set checking) |