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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 "levelSets" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'levelSets: Ray-Based Mapping and Visualization of Level Sets (Excursion Sets)'
version: 0.8.2
doi: 10.32614/CRAN.package.levelSets
abstract: 'An (upper) level set of a function is the set of inputs for which the function
  value is at or above a specified threshold. (Also called an excursion set). Applications
  of level sets include confidence or credible regions for parameters of statistical
  models, where the function is the likelihood or posterior density; regions where
  classification rules assign high probability to a given class; and scientific or
  engineering models where one is interested in input regions for which model output
  is above a threshold. This package maps out the boundary of a level set by finding
  its intersections with collections of 1-dimensional rays, generalizing a proposal
  by Kim and Lindsay (Statistica Sinica 21:923-948, 2011). Tools are provided to generate
  rays, find intersections, and visualize results. The package makes few assumptions
  about the studied function: it may be discontinuous, it may have a complicated feasible
  region, and the target level set may be non-convex or have multiple, disconnected
  parts. Vignettes describe package usage and show examples with two to five input
  space dimensions.'
authors:
- family-names: Raubertas
  given-names: Richard
  email: rrprf@emvt.net
repository: https://rrprf.r-universe.dev
commit: f3e33bc9cec5f765c90691d315514f2804b8dc45
date-released: '2026-06-15'
contact:
- family-names: Raubertas
  given-names: Richard
  email: rrprf@emvt.net