Re: [R] about error while using anova function

I don't know what your data look like, but I recently ran into this error message while using Anova() in the {car} package, and I resolved in by replacing the categorical predictors in my model with orthogonal contrasts. I did something along these lines: fac <- factor(c("M","F","M","M","F"))

[R] about error while using anova function

fit1<-rq(formula=op~inp1+inp2+inp3+inp4+inp5+inp6+inp7+inp8+inp9,tau=0.15,data=wbc) fit2<-rq(formula=op~inp1+inp2+inp3+inp4+inp5+inp6+inp7+inp8+inp9,tau=0.5,data=wbc) fit3<-rq(formula=op~inp1+inp2+inp3+inp4+inp5+inp6+inp7+inp8+inp9,tau=0.15,data=wbc) fit4<-rq(formula=op~inp1+inp2+inp3+inp4+inp5+inp