internal_weightsAn internal S4 class to help transfer weight statistics out of internal_weights
weightsa data.table containing the estimated weights, either pre or post expansion
coef.n0numerator zero model
coef.n1numerator one model
coef.d0denominator zero model
coef.d1denominator one model
coef.ncensenumerator censoring model
coef.dcensedenominator censoring model