getSig: Get the values for Sigma derivatives DVSigma for the ModelError object.
Description
Get the values for Sigma derivatives DVSigma for the ModelError object.
Usage
getSig(object, f_x_i_theta)
Value
A list indexed with the parameters giving the values for the derivatives with respect to each parameters of the model error.
Arguments
- object
ModelError object.
- f_x_i_theta
the nonlinear structural model f_x_i_theta