Displaying 2 results from an estimated 2 matches for "f1tau".
2009 Nov 02
1
need help in using Hessian matrix
Hi
I need to find the Hessian matrix for a complicated function from a certain
kind of data but i keep getting this error
Error in f1 - f2 : non-numeric argument to binary operator
the data is given by
U<-runif(n)
Us<-sort(U)
tau1<- 2
F1tau<- pgamma((tau1/theta1),shape,1)
N1<-sum(Us<F1tau)
X1<- Us[1:N1]
Ti<- theta1*qgamma(Us[1:N1],shape,1)
w=N1+1
V<- Us[w:r]
N2<- length(V)
V1<-theta2*qgamma(V,shape,1)
Tj<-V1+tau1-(theta2/theta1)*...
2008 Jul 26
4
parametric bootstrap
Hi
I am trying to find a parametric bootstrap confidence interval and when I used the boot function I get zero bias and zero st.error? What could be my mistake?
Thank you and take care.
Laila
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