search for: testinteract

Hi All, I have data about seed predation (SP) in fruits of three differents colors (yellow, motted, dark) and in two fruiting seasons (2007, 2008). I performed a GLMM (lmer function, lme4 package) and the outcome showed that the interaction term (color:season) was significant, and some combinations of this interaction have significant Pr(>|z|), but I don't think they are the right

...ally suited for the analysis of interaction effects. The function "testFactors" provides a flexible user interface for defining combinations of factor levels and covariates, to evaluate and test the model, using the function "linearHypothesis" from package "car". "testInteractions" gives a simpler interface to test multiple comparisons of simple effects, interaction residuals, interaction contrasts, or user-defined contrasts. "interactionMeans" may be used to explore the "cell means" of factorial designs, and plot main effects or first-order inte...

...ally suited for the analysis of interaction effects. The function "testFactors" provides a flexible user interface for defining combinations of factor levels and covariates, to evaluate and test the model, using the function "linearHypothesis" from package "car". "testInteractions" gives a simpler interface to test multiple comparisons of simple effects, interaction residuals, interaction contrasts, or user-defined contrasts. "interactionMeans" may be used to explore the "cell means" of factorial designs, and plot main effects or first-order inte...