我即将运行一个 glm 模型来检验我的假设。运行模型后,我得到了奇点警告按摩:
glmakde_mdDredge <- lmer(log(akdearea) ~ 1 + age_binary + sex + trimester_number + Year + trackNightnum + mean_max_displacement.s + meanIIV_md.s + (1|Ring_ID), data = HRfullData, REML = F)
boundary (singular) fit: see ?isSingular
我在这个模型上运行了 MuMIn::dredge
options(na.action = 'na.fail')
dreModelsScore <- MuMIn::dredge(glmakde_mdDredge)
Fixed term is "(Intercept)"
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
总结确实给出了结果。
我的问题是,尽管有警告消息,模型是否运行了所有可能的选项(包括奇点选项),还是仅在没有奇点问题的模型上运行?