Displaying 1 result from an estimated 1 matches for "fllwfunch".
2007 May 26
1
bug from nlm function (PR#9711)
...MLE of weibull parameters using the nlm with exact gradient
an
hessian. I am doing. bug report :Erro en log(b) : el argumento "b" est? ausente,
sin default
1.Construction to objectiv functin with n=1 data
>fllwform<-formula(~log(a)-log(b)-(a-1)*(log(x)-log(b))- (x^a)/(b^a))
> fllwfuncH <-deriv(fllwform,c("a","b"),function(a,b,x){})
> fllwfuncH
function (a, b, x)
{
.expr2 <- log(b)
.expr4 <- a - 1
.expr5 <- log(x)
.expr6 <- .expr5 - .expr2
.expr9 <- x^a
.expr10 <- b^a
.expr19 <- .expr10^2
.ex...