| Class | Data Declaration command |
| Name | set liability |
| Arguments | <binary trait> <liability class indicator trait> <number of classes> |
Declare a quantitative trait to indicate liability class for the named binary trait. Used to generate Linkage format locus and pedigree files.
Example:
>> set locus diabetes aff >> set decade qua >> set liability diabetes decade 7
| << (set twin) | Up to index | >> (set skiplines) |