Hello, I`m trying to reduce my AIC for my model and I currently try to use the "stepcAIC" function from the cAIC4 package. However nothing happens for hours and when I say stop I get lot of these warnings: In refit.merMod(zeroLessModel, nresp = workingData) :
additional arguments to refit.merMod ignored
My code is:
#Modell mit makro. Variablen
makro <- glmer(def~ fedfunds_neu + unrate_neu + economy_index_neu + ppiaco_growth+ inflation + RGDP.growth +(1|year),data = all.data, family = binomial(link = "probit"))
summary(makro)
stepcAIC(makro)
thank you for your help.
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