Displaying 1 result from an estimated 1 matches for "between_covariates".
2013 Sep 20
0
Best way to specify a mixed ANCOVA in R?
...-statistic and p-values for interactions with the covariate - the main effect of the covariate is also not tested using this method.
My ezANOVA model is as follows:
aov.model<-ezANOVA(
data=textureView.child.outliersRemoved
, dv=.(x)
, wid=.(ID)
, within=.(Texture,View)
, between=.(TNOGroup)
, between_covariates=.(Age)
, type=3
, return_aov=TRUE
)
Another option is to use lm or Anova, but I don't know how to specify the error terms properly for either and I'm limited because I want to use Type-III sums of squares (drop1 doesn't work in the cases where I've tried to use the aov wrapper...