Package: gps
Version: 1.2
Date: 2023-05-21
Title: General P-Splines
Authors@R: person("Zheyuan", "Li", role = c("aut", "cre"),
                  email = "zheyuan.li@bath.edu",
                  comment = c(ORCID = "0000-0002-7434-5947"))
Author: Zheyuan Li [aut, cre] (<https://orcid.org/0000-0002-7434-5947>)
Maintainer: Zheyuan Li <zheyuan.li@bath.edu>
Depends: R (>= 4.0.0)
Imports: stats, splines, Matrix, methods, graphics, grDevices
Description: General P-splines are non-uniform B-splines penalized by a
        general difference penalty, proposed by Li and Cao (2022)
        <arXiv:2201.06808>. Constructible on arbitrary knots, they
        extend the standard P-splines of Eilers and Marx (1996)
        <doi:10.1214/ss/1038425655>. They are also related to the
        O-splines of O'Sullivan (1986) <doi:10.1214/ss/1177013525> via
        a sandwich formula that links a general difference penalty to a
        derivative penalty. The package includes routines for setting
        up and handling difference and derivative penalties. It also
        fits P-splines and O-splines to (x, y) data (optionally
        weighted) for a grid of smoothing parameter values in the
        automatic search intervals of Li and Cao (2023)
        <doi:10.1007/s11222-022-10178-z>. It aims to facilitate other
        packages to implement P-splines or O-splines as a smoothing
        tool in their model estimation framework.
License: GPL-3
NeedsCompilation: yes
URL: https://github.com/ZheyuanLi/gps
Repository: https://zheyuanli.r-universe.dev
Date/Publication: 2023-05-21 12:02:31 UTC
RemoteUrl: https://github.com/zheyuanli/gps
RemoteRef: HEAD
RemoteSha: ed5ea12192d369927e8b4e0ae29dc58399daef19
Packaged: 2026-10-16 08:08:53 UTC; root