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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 "Rpcop" in publications use:'
type: software
license: GPL-2.0-or-later
title: 'Rpcop: Principal Curves of Oriented Points'
version: 1.2.3
identifiers:
- type: doi
  value: 10.32614/CRAN.package.Rpcop
abstract: Principal curves generalize the notion of a first principal component to
  the case in which it is a nonlinear smooth curve. This package provides a function
  pcop(X) to compute principal curves with the algorithm defined in Delicado (2001)
  <https://doi.org/10.1006/jmva.2000.1917> from a data matrix X.
authors:
- family-names: Delicado
  given-names: Pedro
  email: pedro.delicado@upc.edu
- family-names: Huerta
  given-names: Mario
  email: mario.huerta@uab.es
- family-names: Frick
  given-names: Kevin Michael
  email: kmfrick@proton.me
preferred-citation:
  type: manual
  title: 'Rpcop: Principal Curves of Oriented Points'
  authors:
  - family-names: Frick
    given-names: Kevin Michael
    email: kmfrick@proton.me
  year: '2026'
  notes: R package version 1.2.3
  url: https://github.com/kmfrick/Rpcop
repository: https://cran.r-universe.dev
repository-code: https://github.com/kmfrick/Rpcop
commit: 8fa7e994b08e4b111a500c31906319089855b144
url: https://github.com/kmfrick/Rpcop
date-released: '2026-06-10'
contact:
- family-names: Frick
  given-names: Kevin Michael
  email: kmfrick@proton.me
references:
- type: article
  title: 'Principal Curves of Oriented Points: theoretical and computational improvements'
  authors:
  - family-names: Delicado
    given-names: Pedro
  - family-names: Huerta
    given-names: Mario
  journal: Computational Statistics
  year: '2003'
  volume: '18'
  doi: 10.1007/s001800300145
  start: '293'
  end: '315'
- type: article
  title: Another Look at Principal Curves and Surfaces
  authors:
  - family-names: Delicado
    given-names: Pedro
  journal: Journal of Multivariate Analysis
  year: '2001'
  volume: '77'
  doi: 10.1006/jmva.2000.1917
  start: '84'
  end: '116'