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
zip<-zeroinfl(No.of.fatal~.|., data=LI, link="l
阅读背景：
R中零膨胀泊松回归的误差
来源：互联网
分享到：
