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# CITATION 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 "EFM" in publications use:'
type: software
license: MIT
title: 'EFM: Elliptical Factor Models'
version: 1.3.0
doi: 10.32614/CRAN.package.EFM
abstract: The elliptical factor model, as an extension of the traditional factor model,
  effectively overcomes the limitations of the traditional model when dealing with
  heavy-tailed characteristic data. This package implements sparse principal component
  methods (SPC) and bi-sparse online principal component estimation (SPOC) for parameter
  estimation. Includes functionality for calculating mean squared error, relative
  error, and loading matrix sparsity.The philosophy of the package is described in
  Guo G. (2023) <https://doi.org/10.1007/s00180-022-01270-z>.
authors:
- family-names: Guo
  given-names: Guangbao
  email: ggb11111111@163.com
- family-names: Zhou
  given-names: Yuanyuan
repository: https://guangbaog.r-universe.dev
commit: 8b08f93fa3d609fed10d08f082c4ab730039ea81
date-released: '2025-11-14'
contact:
- family-names: Guo
  given-names: Guangbao
  email: ggb11111111@163.com