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Changelog

Source: NEWS.md

mcgf (development version)

mcgf 1.2.0

CRAN release: 2026-08-21

version 1.2.0

Miscellaneous

  • Updated package documentation and vignettes for consistency and clarity
  • Added the reference to Jia and Sezer (2025) for regime-switching spatio-temporal covariance models
  • Corrected typographical, grammatical, and terminology errors throughout the package

Function updates

  • Standardized support and documentation for the exponential Lagrangian correlation function
  • Updated documentation for weighted least squares and approximate conditional maximum likelihood estimation
  • Improved documentation and argument descriptions for covariance, fitting, and Kriging functions

Bug fixes

  • mcgf_sim: fixed handling of the default Lagrangian model argument
  • Improved covariance-matrix validation for maximum likelihood estimation
  • Fixed issues in distance assignment and Kriging functions for existing and new locations
  • Improved input validation and error handling across model fitting and forecasting functions

version 1.1.1

Function updates

  • added dists_new_base argument to krige_new.mcgf

Bug fixes

  • .find_dists: fixed an argument bug for names
  • obj_mle: NA values are removed in llike

version 1.1.0

Miscellaneous

  • New vignettes for regime-switching models
  • Updated description and modified reference
  • Updated simulated samples throughout the package to allow new locations

New functions

  • R/krige_new.R
  • R/find_dists_new.R
  • R/cor_lagr_exp.R

Function updates

  • added exponential function for the Lagrangian model
  • added two arguments to mcgf()

Bug fixes

  • find_dists: fixed bug for computing long/lat distnaces
  • add_lagr: dists_base -> dists_lagr

New features

  • Kriging for new locations are supported
  • Exponential Lagrangian correlation function added

version 1.0.1

New functions

  • misc/update_NEWS.R

Function updates

  • added arguments to check_dist_sign and check_dist

Bug fixes

  • fit_lagr: fixed check_dist for dists_lagr
  • add_lagr: dists_base -> dists_lagr

version 1.0.0

  • Initial CRAN submimssion

version 0.0.0.9000

NEWS.md setup

  • added NEWS.md creation with newsmd