我有一个包含 357 名患者的数据集。最终模型中大约有 10-15 个潜在变量可供选择。一些变量高度相关。所以我决定使用增强后向消除变量选择方法。
fit1<-glm(EWL_8Percent~Maternal.Age+local+DM_all+HTN_all+Gestational.Age+Type.of.delivery+Maternal.IV.Fluid.therapy+D0.Weight+Gender+Primiparity+resus+Phototherapy+EBF_D3+Maternal.confidence,family=binomial,data=data_term)
abe.fit<-abe(fit1,data=data_term,include=NULL,active=NULL,tau=0.05,exp.beta=FALSE,exact=TRUE,criterion="alpha",alpha=0.2,type.test="F",verbose=TRUE,type.factor="factor")
但是,我一直无法解决。下面是错误消息
Error in abe(fit1, data = data_term, include = NULL, active = NULL, tau = 0.05, :
the model should be fitted with: x=T
任何帮助深表感谢。谢谢你