Calculates the modeling score of a GMWM
model_score(A, D, omega, v_hat, obj_value)
A mat
that contains the first derivatives of the processes
A mat
that contains the omega used when calculating the GMWM
A mat
that contains the covariance matrix
A mat
that contains the second derivative of each process
A vec
that is the difference of the WV empirical and WV theoretical
A vec
The equation is slightly different than that stated in the paper due to the bootstrap already incorporating in N.