Displaying 1 result from an estimated 1 matches for "tp4123965p4123965".
2011 Nov 30
1
How can I pick a matrix from a function? (Out Product of Gradient)
Hi all,
I would like to use optim() to estimate the equation by the log-likelihood
function and gradient function which I had written. I try to use OPG(Out
Product of Gradient) to calculate the Hessian matrix since sometime Hessian
matrix is difficult to calculate. Thus I want to pick the Gradient matrix
from the gradient function.
Moreover, could R show the process of calculation on gradient