Changes in version 1.4.3                        

Bug fixes

  - EGI() and EGIparallel() no longer emit spurious "NAs introduced by
    coercion" warnings with penalized km models.

  - tmse_optim() no longer returns NaN at points where the kriging
    variance is zero.

  - vorob_threshold() and integration_design(distrib = "vorob") now work
    when the excursion set is empty or covers the whole domain. Before,
    they returned an empty value or stopped with an error.

  - The "tsee" criterion can now be used in max_infill_criterion() and
    EGI().

  - Discrete optimisation over candidate batches
    (optimcontrol$optim.points with batchsize*d columns) now works in
    max_sur_parallel(), max_timse_parallel(), max_vorob_parallel(),
    max_futureVol_parallel() and EGIparallel().

  - print_uncertainty_1d() and print_uncertainty_2d(): the conservative
    estimate (consQuantile = list(consLevel = ...)) now works with one
    threshold and uses consQuantile$typeEx. With several thresholds it
    is skipped with a message instead of failing.

Documentation

  - Updated references: the published version of Azzimonti et al. (2021)
    doi:10.1080/00401706.2019.1693427, DOIs for all journal articles,
    and corrected author names and titles.

  - Examples previously in \dontrun{} are now in \donttest{} and are
    checked.

  - Fixed Rd markup that caused a "Lost braces" NOTE in CRAN checks.

  - The package help page (?KrigInv) now lists the current maintainer.

Testing and infrastructure

  - New test suite based on testthat (3rd edition).

  - GitHub Actions for R CMD check and test coverage (coveralls).