ctmaCompFit {CoTiMA} | R Documentation |
Performs log-liklihood ratio tests to compare the fit of 2 models (CoTiMAFit objects created with ctmaFit
or ctmaEqual
), i.e., the difference between the two -2 times LLs between the first model and the more constrained second
model. The nested structure of the two models is assumed to be given and not checked.
ctmaCompFit(model1 = NULL, model2 = NULL)
model1 |
Model 1 |
model2 |
Model 2 |
Returns the the difference between the two -2 times LLs (Diff_Minus2LL), the associated difference in degrees of freedom (Diff_df (= Diff_n.params)), and the probability (prob).
minus2llDiffTest <- ctmaCompFit(CoTiMAFullInv23Fit_6, CoTiMAFullInvEq23Fit_6) summary(minus2llDiffTest)