Package: simsl
Type: Package
Title: Single-Index Models with a Surface-Link
Version: 0.2.1
Author: Hyung Park, Eva Petkova, Thaddeus Tarpey, R. Todd Ogden
Maintainer: Hyung Park <parkh15@nyu.edu>
Description: An implementation of a single-index regression for
        optimizing individualized dose rules from an observational
        study. To model interaction effects between baseline covariates
        and a treatment variable defined on a continuum, we employ
        two-dimensional penalized spline regression on an
        index-treatment domain, where the index is defined as a linear
        combination of the covariates (a single-index). An unspecified
        main effect for the covariates is allowed, which can also be
        modeled through a parametric model. A unique contribution of
        this work is in the parsimonious single-index parametrization
        specifically defined for the interaction effect term. We refer
        to Park, Petkova, Tarpey, and Ogden (2020)
        <doi:10.1111/biom.13320> (for the case of a discrete treatment)
        and Park, Petkova, Tarpey, and Ogden (2021) "A single-index
        model with a surface-link for optimizing individualized dose
        rules" <arXiv:2006.00267v2> for detail of the method. The model
        can take a member of the exponential family as a response
        variable and can also take an ordinal categorical response. The
        main function of this package is simsl().
License: GPL-3
Imports: mgcv, stats
Encoding: UTF-8
LazyData: true
RoxygenNote: 6.1.1
NeedsCompilation: no
Packaged: 2026-10-07 12:11:55 UTC; root
Depends: R (>= 3.5.0)
Repository: https://cran.r-universe.dev
Date/Publication: 2021-02-12 13:40:03 UTC
RemoteUrl: https://github.com/cran/simsl
RemoteRef: HEAD
RemoteSha: 92efc35472d100b84c45e7881c69dc647c016184