Chase J (2026). spatialkit: Spatial Tessellation, Modeling, and Cross-Validation Toolkit. R package version 2.0.0, https://github.com/elkronos/gis_modeling_toolkit.

spatialkit implements published methods. If you use one of them, please cite the method as well as the package: area_of_applicability(): Meyer, H. and Pebesma, E. (2021). Predicting into unknown space? Estimating the area of applicability of spatial prediction models. Methods in Ecology and Evolution 12(9), 1620-1633. <doi:10.1111/2041-210X.13650> make_folds(method = "nndm"): Mila, C., Mateu, J., Pebesma, E. and Meyer, H. (2022). Nearest neighbour distance matching leave-one-out cross-validation for map validation. Methods in Ecology and Evolution 13(6), 1304-1316.<doi:10.1111/2041-210X.13851> fit_bayesian_spatial_model() GP basis: Riutort-Mayol, G., Burkner, P.-C., Andersen, M. R., Solin, A. and Vehtari, A. (2023). Practical Hilbert space approximate Bayesian Gaussian processes for probabilistic programming. Statistics and Computing 33, 17. <doi:10.1007/s11222-022-10167-2> fit_rf_model() permutation importance: Strobl, C., Boulesteix, A.-L., Zeileis, A. and Hothorn, T. (2007). Bias in random forest variable importance measures: illustrations, sources and a solution. BMC Bioinformatics 8, 25.<doi:10.1186/1471-2105-8-25> fit_rf_model(include_coords =) and cv_rf(): Meyer, H., Reudenbach, C., Wollauer, S. and Nauss, T. (2019). Importance of spatial predictor variable selection in machine learning applications - moving from data reproduction to spatial prediction. Ecological Modelling 411, 108815. <doi:10.1016/j.ecolmodel.2019.108815> fit_gwr_model() and gwr_model_selection(): Lu, B., Harris, P., Charlton, M. and Brunsdon, C. (2014). The GWmodel R package: further topics for exploring spatial heterogeneity using geographically weighted models. Geo-spatial Information Science 17(2), 85-101. <doi:10.1080/10095020.2014.917453>

Corresponding BibTeX entry:

  @Manual{,
    title = {spatialkit: Spatial Tessellation, Modeling, and
      Cross-Validation Toolkit},
    author = {Justin Chase},
    year = {2026},
    note = {R package version 2.0.0},
    url = {https://github.com/elkronos/gis_modeling_toolkit},
  }