This function takes current parameters, gives updated mean latent values for missingness model
updatemustar(mu, c, n, T0, D)
updatemustar(mu, c, n, T0, D)
returns the updated mean latent values for missingness model.
current estimated mean matrix for CAL
current c for missingness model
number of patients
number of teeth
the D matrix in the paper
Yuliang Li
update_RJ for a complete example for all functions in this package.