Package: gpfield
Title: Change-of-Support Gaussian-Process Regression for Field and
        Multi-Environment-Trial Data
Version: 0.4.1
Authors@R: 
    person("Max", "Moldovan", , "max.moldovan@gmail.com",
           role = c("aut", "cre", "cph"),
           comment = c(ORCID = "0000-0001-9680-8474"))
Description: A self-contained, contract-emitting member of the
        agricultural analytics orchestra for spatial and
        spatio-temporal Gaussian-process regression over field and
        multi-environment-trial layouts. Fits an exact Gaussian process
        to spatial (and optionally temporal) coordinates with a choice
        of squared-exponential or 'Matern' covariance, estimating the
        hyperparameters by marginal-likelihood optimisation. Its
        defining feature is change of support: a prediction can be
        requested at a support different from the one observed -- a
        point process predicted as block (paddock-scale) averages, or
        block averages disaggregated toward points -- with the
        predictive variance propagated through the support map.
        Predictions abstain with a typed, machine-readable reason when
        the estimated spatial range or the data support cannot bear the
        requested resolution, so the member refuses cleanly rather than
        returning a confident wrong surface. Results are emitted as a
        versioned, provenance-complete object compatible with the
        orchestra ensemble-manifest contract, so a smoothed field
        surface composes directly with downstream calibration,
        uncertainty-quantification, causal-inference and decision
        tools. The package is released under the MIT licence and takes
        no heavy external Gaussian-process dependency: the exact solver
        is base R.
License: MIT + file LICENSE
URL: https://github.com/max578/gpfield
BugReports: https://github.com/max578/gpfield/issues
Depends: R (>= 4.1.0)
Imports: digest, S7, stats, utils
Suggests: agridat, callr, ggplot2, knitr, rmarkdown, testthat (>=
        3.0.0)
VignetteBuilder: knitr
Config/testthat/edition: 3
Encoding: UTF-8
Language: en-AU
Roxygen: list(markdown = TRUE)
Config/roxygen2/version: 8.1.0
Repository: https://max578.r-universe.dev
Date/Publication: 2026-10-09 22:32:20 UTC
RemoteUrl: https://github.com/max578/gpfield
RemoteRef: main
RemoteSha: b6f355aec2b88f3be4b6c12a5102353a3a37fbe4
NeedsCompilation: no
Packaged: 2026-10-10 01:08:47 UTC; root
Author: Max Moldovan [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0001-9680-8474>)
Maintainer: Max Moldovan <max.moldovan@gmail.com>