Hello
Can someone help me with the following, specifically in judging
whether a matrix exists. I have trouble with the first line below. In
this case, matrix obj$hessian exists and is 74 x 74. I receive the
error message:
Warning message:
In all(w$hessian) : coercing argument of type 'double' to logical
Thank you all.
---
if (!all(obj$hessian)|OPG){
vb<-obj$gradientObs; vb<-solve(t(vb)%*%vb)
vb.method<-"; v(b)=inv(G'G)"
} else {
vb<- solve(-obj$hessian)
vb.method<-"; v(b)=inv(-H)"
}
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