Semiparametric integration model using the location-scale model
integrate_semiparametric(formula.location, formula.scale, ...)
Formula specifying the integration model for the location component of the surrogate under treatment. Generally the candidate surrogate will be on the left side in the formula, and the BIP or BIPs will be on the right side
Formula specifying the integration model for the scale component of the surrogate under treatment. Generally the candidate surrogate will be on the left side in the formula, and the BIP or BIPs will be on the right side
Other parameters passed to sp_locscale