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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 "fields" in publications use:'
type: software
license: GPL-2.0-or-later
title: 'fields: Tools for Spatial Data'
version: '16.3'
identifiers:
- type: doi
  value: 10.32614/CRAN.package.fields
abstract: For curve, surface and function fitting with an emphasis on splines, spatial
  data, geostatistics, and spatial statistics. The major methods include cubic, and
  thin plate splines, Kriging, and compactly supported covariance functions for large
  data sets. The splines and Kriging methods are supported by functions that can determine
  the smoothing parameter (nugget and sill variance) and other covariance function
  parameters by cross validation and also by restricted maximum likelihood. For Kriging
  there is an easy to use function that also estimates the correlation scale (range
  parameter). A major feature is that any covariance function implemented in R and
  following a simple format can be used for spatial prediction. There are also many
  useful functions for plotting and working with spatial data as images. This package
  also contains an implementation of sparse matrix methods for large spatial data
  sets and currently requires the sparse matrix (spam) package. Use help(fields) to
  get started and for an overview. The fields source code is deliberately commented
  and provides useful explanations of numerical details as a companion to the manual
  pages. The commented source code can be viewed by expanding the source code version
  and looking in the R subdirectory. The reference for fields can be generated by
  the citation function in R and has DOI <https://doi.org/10.5065/D6W957CT>. Development
  of this package was supported in part by the National Science Foundation Grant 1417857,
  the National Center for Atmospheric Research, and Colorado School of Mines. See
  the Fields URL for a vignette on using this package and some background on spatial
  statistics.
authors:
- family-names: Nychka
  given-names: Douglas
  email: douglasnychka@gmail.com
- family-names: Furrer
  given-names: Reinhard
  email: reinhard.furrer@math.uzh.ch
- family-names: Paige
  given-names: John
  email: paigejo@uw.edu
- family-names: Sain
  given-names: Stephan
  email: sainsr2@gmail.com
- family-names: Gerber
  given-names: Florian
  email: flora.fauna.gerber@gmail.com
- family-names: Iverson
  given-names: Matthew
  email: miverson@mines.edu
- family-names: Johnson
  given-names: Rider
  email: riderjohnson@mines.edu
preferred-citation:
  type: generic
  title: 'fields: Tools for spatial data'
  authors:
  - name: Douglas Nychka
  - name: Reinhard Furrer
  - name: John Paige
  - name: Stephan Sain
  notes: R package version 16.3
  location:
    name: Boulder, CO, USA
  year: '2021'
  url: https://github.com/dnychka/fieldsRPackage
repository: https://CRAN.R-project.org/package=fields
repository-code: https://github.com/dnychka/fieldsRPackage
url: https://github.com/dnychka/fieldsRPackage
date-released: '2024-09-30'
contact:
- family-names: Nychka
  given-names: Douglas
  email: douglasnychka@gmail.com