Package: ModalNet
Type: Package
Title: Regularized Parametric Modal Regression: Lasso, Elastic Net and
        Ridge
Version: 0.3.0
Authors@R: c(
    person("Christian E.", "Galarza", email = "chedgala@espol.edu.ec",
           role = c("aut", "cre", "cph"),
           comment = c(ORCID = "0000-0002-4818-6006",
                       affiliation = "Escuela Superior Politécnica del Litoral, Guayaquil, Ecuador")),
    person("Víctor H.", "Lachos", email = "hlachos@uconn.edu", role = "aut",
           comment = c(ORCID = "0000-0002-7239-2459",
                       affiliation = "University of Connecticut, Storrs, CT, USA")),
    person("Dashun", "Liu", email = "dashun.liu@uconn.edu", role = "aut",
           comment = c(affiliation = "University of Connecticut, Storrs, CT, USA")))
Description: Variable selection and estimation for parametric modal regression
    with continuous positive responses (Gamma, Weibull and Lognormal families)
    under Lasso, elastic-net, ridge and adaptive-Lasso penalties. The conditional
    mode is linked to a linear predictor through a logarithmic link using the
    mode reparameterization of Galarza and Lachos (2026) <doi:10.48550/arXiv.2603.07099>.
    The penalized log-likelihood is maximized with a proximal Newton algorithm
    (iteratively reweighted penalized least squares): at each iteration the
    modal log-likelihood is replaced by a local quadratic surrogate in the
    linear predictor, which yields a pseudo-response and a working weight in
    closed form, and the resulting weighted penalized least-squares subproblem
    is solved by the coordinate-descent solver of 'glmnet' (Friedman, Hastie and
    Tibshirani, 2010, <doi:10.18637/jss.v033.i01>). The regularization parameter
    is chosen along a warm-started path by the extended Bayesian information
    criterion of Chen and Chen (2008) <doi:10.1093/biomet/asn034>.
License: GPL-3
Encoding: UTF-8
Depends: R (>= 4.1.0)
Imports: glmnet, stats, graphics
Suggests: survival
LazyData: true
URL: https://github.com/chedgala/ModalNet
BugReports: https://github.com/chedgala/ModalNet/issues
RoxygenNote: 7.3.3
NeedsCompilation: no
Packaged: 2026-10-22 04:36:04 UTC; chedgala
Author: Christian E. Galarza [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-4818-6006>, affiliation: Escuela
    Superior Politécnica del Litoral, Guayaquil, Ecuador),
  Víctor H. Lachos [aut] (ORCID: <https://orcid.org/0000-0002-7239-2459>,
    affiliation: University of Connecticut, Storrs, CT, USA),
  Dashun Liu [aut] (affiliation: University of Connecticut, Storrs, CT,
    USA)
Maintainer: Christian E. Galarza <chedgala@espol.edu.ec>
Repository: CRAN
Date/Publication: 2026-11-04 09:40:02 UTC
Built: R 4.5.2; ; 2026-11-04 13:08:53 UTC; unix
