search for: likelilhood

Hi,  I tried fitting loglinear model using the glm(catspec). The data used is FHtab. . An independence model was fitted. Here summary() and fitmacro( ) give different values for AIC.   I understand that fitmacro( ) takes the likelilhood ratio L2(deviance) to calculate AIC and uses the formula AIC= L2- d.f(deviance)*2 and this AIC is used in nested models. (Am I right?)   The value given by loglik( ) is used by summary to calculate AIC using the formula AIC= -2 logL + K* e.d.f. Can anybody tell me how this  log L is calculated?...

Hi,  I tried fitting loglinear model using the glm(catspec). The data used is FHtab. . An independence model was fitted. Here summary() and fitmacro( ) give different values for AIC.   I understand that fitmacro( ) takes the likelilhood ratio L2(deviance) to calculate AIC and uses the formula AIC= L2- d.f(deviance)*2 and this AIC is used for comparison of nested models. (Am I right?)   The value given by loglik( ) is used by summary()  to calculate AIC in the formula AIC= -2 logL + K* e.d.f. Can anybody tell me how this  log L is...