• Extending the Lattice-Based Smoother using a generalized additive model

      Rakhmetova, Gulfaya; McIntyre, Julie; Short, Margaret; Goddard, Scott (2017-12)
      The Lattice Based Smoother was introduced by McIntyre and Barry (2017) to estimate a surface defined over an irregularly-shaped region. In this paper we consider extending their method to allow for additional covariates and non-continuous responses. We describe our extension which utilizes the framework of generalized additive models. A simulation study shows that our method is comparable to the Soap film smoother of Wood et al. (2008), under a number of different conditions. Finally we illustrate the method's practical use by applying it to a real data set.