Questions tagged [ggeffects]

I used function ggpredict() from package ggeffects 1.3.0 and function emmeans() from package emmeans to calculate estimates and confidence intervals (hereafter: CI) for a mixed-effect model. The CI estimated by the two functions differ. Why? The…

Currently trying to use ggeffects for a mmblogit object from the mclogit package, but the following messages are being shown: > ggeffects::ggeffect(model.example) Can't compute marginal effects, 'effects::Effect()' returned an error. Reason: 'arg'…

I've been trying to apply cluster-robust standard errors in my calculation of the marginal effects of two predictor variables (main effects and their interaction) in a ZINB model. The code works perfectly when I don't include the cluster-robust…

I have run a model: mymodel <- glm(averagetime~group,family=Gamma,data = mydata, weights=myweights) I used the ggeffects package to create an output datafile that I can graph: library(ggeffects) library(ggplot2) Out_mymodel <- ggpredict(mymodel,…