G
George88
Member
On page 12 of the GLM chapter the structure in matrix form is given as
Y = inverse link (XBEta + error)+error which makes sense.
Then on page 21 on matrix inversion the inverse link function is removed because we are considering an inverse normal with identity link, which makes sense. Then I can follow all the hat matrix stuff from there.
It is detailed that when more complex link functions used we have to use Newton raphson.
So is calculating the estimates using hat matrix directly only appropriate for identity link? What happened to all the maximum likelihood stuff from ct6? That seemed much more flexible
Y = inverse link (XBEta + error)+error which makes sense.
Then on page 21 on matrix inversion the inverse link function is removed because we are considering an inverse normal with identity link, which makes sense. Then I can follow all the hat matrix stuff from there.
It is detailed that when more complex link functions used we have to use Newton raphson.
So is calculating the estimates using hat matrix directly only appropriate for identity link? What happened to all the maximum likelihood stuff from ct6? That seemed much more flexible