zip<-zeroinfl(No.of.fatal~.|., data=LI, link="logit", dist="poisson")
Error in solve.default(as.matrix(fit$hessian)) :
Lapack routine dgesv: system is exactly singular: U[72,72] = 0
In addition: Warning message:
glm.fit: fitted probabilities numerically 0 or 1 occurred
- 我不明白这个错误,我是否遗漏了数据中的某些内容?
- 是否有可能知道该程序中犯了什么错误?
- 我该如何解决这个错误?
- “系统完全是单一的”是什么意思?