|Class||Analysis and data manipulation command|
|Arguments||<trait 1> [[+] <trait 2>...] [[+] <trait 1> * <trait 2>...] [-1] [allelic]|
Carry out log-linear modelling of a multidimensional contingency table under the specified model, which may include main effects and interactions. The model includes an intercept by default, but this can be excluded by addition of "-1" to the formula.
The allelic option causes an allelic model to be fitted for genotypes of the first listed marker in the model. So,
llm ldl allelic tests Hardy-Weinberg equilibrium for the locus "ldl".
llm ldl carrier ldl*carrier allelic fits a multiplicative allelic association between "ldl" and "carrier".
The lrt command can be used to compare sequentially fitted models.
>> include williamsex.in >> llm CHD carrier ldl >> llm CHD carrier ldl carrier*ldl >> lrt >> set plevel 2 >> llm CHD carrier ldl carrier*ldl
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