Package: SingRegKrig
Type: Package
Title: Singularity Regression Kriging for Spatial Prediction
Version: 0.1.0
Authors@R: c(
    person("Shikhar", "Tyagi", email = "shikhar1093tyagi@gmail.com",
           role = c("aut", "cre"), comment = c(ORCID = "0000-0003-1606-0844")),
    person("Arvind", "Pandey", email = "arvindmzu@gmail.com", role = "aut"),
    person("Bhupendra", "Singh", email = "bhupendra.rana@gmail.com", role = "aut"),
    person("Vrijesh", "Tripathi", email = "vrijesh.tripathi@uwi.edu", role = "aut"))
Description: Implements the Singularity Regression Kriging ('SRK') model for
    spatial prediction by integrating covariate singularity feature
    construction, nonlinear trend estimation via random forest, and
    geostatistical interpolation of residuals using ordinary kriging.
    Singularity-based anomaly indices are computed from environmental
    covariates at multiple spatial scales to capture local multiscale
    heterogeneity and augment the random forest feature set for trend
    estimation. The resulting residuals are interpolated using ordinary kriging
    to generate final spatial predictions with uncertainty quantification.
    Tools for spatial block cross-validation, parameter sensitivity analysis,
    and diagnostic visualization are also provided. Methods are based on
    Ren, Song, Chen, and Yu (2026) <doi:10.1080/15481603.2026.2690341>,
    with singularity theory from Cheng (2012)
    <doi:10.1016/j.gexplo.2012.07.007> and Cheng (2017)
    <doi:10.1016/j.gr.2017.07.011>, random forest methodology from
    Breiman (2001) <doi:10.1023/A:1010933404324>, and regression kriging
    framework from Hengl, Heuvelink, and Rossiter (2007)
    <doi:10.1016/j.cageo.2007.05.001>.
License: GPL (>= 3)
Encoding: UTF-8
RoxygenNote: 7.3.3
Depends: R (>= 4.0.0)
Imports: stats, graphics, grDevices, randomForest, gstat, sp
Suggests: testthat (>= 3.0.0)
LazyData: true
NeedsCompilation: no
Packaged: 2026-08-03 14:47:19 UTC; shikhar tyagi
Author: Shikhar Tyagi [aut, cre] (ORCID:
    <https://orcid.org/0000-0003-1606-0844>),
  Arvind Pandey [aut],
  Bhupendra Singh [aut],
  Vrijesh Tripathi [aut]
Maintainer: Shikhar Tyagi <shikhar1093tyagi@gmail.com>
Repository: CRAN
Date/Publication: 2026-08-08 12:30:18 UTC
Built: R 4.6.0; ; 2026-08-08 13:11:55 UTC; unix
