gethats {brglm} | R Documentation |
Calculates the leverages of a GLM through a C routine. It is intended to
be used only within brglm.fit
.
gethats(nobs, nvars, x.t, XWXinv, ww)
nobs |
The number of observations, i.e. dim(X)[1] . |
nvars |
The number of parameters, i.e. dim(X)[1] , where
X is the model matrix, excluding the columns that correspond to
aliased parameters. |
x.t |
t(X) . |
XWXinv |
The inverse of the Fisher information. |
ww |
The ‘working’ weights. |
A vector containing the diagonal elements of the hat matrix.
Ioannis Kosmidis, I.Kosmidis@warwick.ac.uk