ddlpl {penMSM} | R Documentation |
Second partial derivative of the log partial likelihood with respect to the linear predictor.
ddlpl(b, X, Ri, Ci)
b |
vector of regression coefficients. |
X |
design matrix. |
Ri |
list of length |
Ci |
list of length |
This function calculates the second partial derivative of the log partial likelihood.
A vector with second gradients.
Holger Reulen
## Not run: ddlpl(b, X, Ri, Ci)