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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "qrcmNP" in publications use:'
type: software
license: GPL-2.0-only
title: 'qrcmNP: Nonlinear and Penalized Quantile Regression Coefficients Modeling'
version: 1.0.0
doi: 10.1177/1471082X19825523
identifiers:
- type: doi
  value: 10.32614/CRAN.package.qrcmNP
abstract: Penalized and nonlinear parametric modeling of quantile regression coefficient
  functions. The penalized integrated loss minimization estimator (lasso and group
  lasso penalties) of Sottile, Frumento, Chiodi and Bottai (2020) <https://doi.org/10.1177/1471082X19825523>
  performs covariate selection using the information on all quantiles simultaneously.
  Nonlinear parametric quantile models, in which the conditional quantile function
  can be a nonlinear function of the parameters, of the covariates or both, are estimated
  by integrated loss minimization as in Bottai and Cilluffo (2020) <https://doi.org/10.1177/0962280220941159>.
  Both approaches extend the quantile regression coefficients modeling framework of
  Frumento and Bottai (2016) <https://doi.org/10.1111/biom.12410> implemented in 'qrcm'.
authors:
- family-names: Sottile
  given-names: Gianluca
  email: gianluca.sottile@unipa.it
  orcid: https://orcid.org/0000-0001-9347-7251
- family-names: Frumento
  given-names: Paolo
preferred-citation:
  type: article
  title: A penalized approach to covariate selection through quantile regression coefficient
    models
  authors:
  - family-names: Sottile
    given-names: Gianluca
    email: gianluca.sottile@unipa.it
    orcid: https://orcid.org/0000-0001-9347-7251
  - family-names: Frumento
    given-names: Paolo
  - family-names: Chiodi
    given-names: Marcello
  - family-names: Bottai
    given-names: Matteo
  journal: Statistical Modelling
  year: '2020'
  volume: '20'
  issue: '4'
  doi: 10.1177/1471082X19825523
  start: '369'
  end: '385'
repository: https://cran.r-universe.dev
repository-code: https://github.com/gianluca-sottile/qrcmNP
commit: 760634e5756808db2f75b8ea316730f16b85a2d5
url: https://github.com/gianluca-sottile/qrcmNP
date-released: '2026-10-30'
contact:
- family-names: Sottile
  given-names: Gianluca
  email: gianluca.sottile@unipa.it
  orcid: https://orcid.org/0000-0001-9347-7251
references:
- type: article
  title: Nonlinear parametric quantile models
  authors:
  - family-names: Bottai
    given-names: Matteo
  - family-names: Cilluffo
    given-names: Giovanna
  journal: Statistical Methods in Medical Research
  year: '2020'
  volume: '29'
  issue: '12'
  doi: 10.1177/0962280220941159
  start: '3757'
  end: '3769'