fitr <- glmer(formula = EPE ~ age + Epstein + mriece + RTsuspect + psadcombi +(1 | Hospital),
data = develop.compl,
family = binomial)
Warning message:
In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv, :
Model failed to converge with max|grad| = 0.00152473 (tol = 0.001, component 1)
fitr <- glmer(formula = EPE ~ age + Epstein + mriece + RTsuspect + psadcombi +
(1 | record_id),
data = develop.compl,
family = binomial)
Warning messages:
1: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv, :
Model failed to converge with max|grad| = 0.533044 (tol = 0.001, component 1)
2: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv, :
Model is nearly unidentifiable: very large eigenvalue
- Rescale variables?
知道为什么会出现此错误吗?是因为我的数据集包含太多的组吗?