Package: soilFlux
Title: Physics-Informed Neural Networks for Soil Water Retention Curves
Version: 0.1.5
Authors@R: 
    person(
      "Hugo", "Rodrigues",
      email = "rodrigues.machado.hugo@gmail.com",
      role  = c("aut", "cre"),
      comment = c(ORCID = "0000-0002-8070-8126")
    )
Description: Implements a physics-informed one-dimensional
        convolutional neural network (CNN1D-PINN) for estimating the
        complete soil water retention curve (SWRC) as a continuous
        function of matric potential, from soil texture, organic
        carbon, bulk density, and depth. The network architecture
        ensures strict monotonic decrease of volumetric water content
        with increasing suction by construction, through cumulative
        integration of non-negative slope outputs (monotone integral
        architecture). Four physics-based residual constraints adapted
        from Norouzi et al. (2025) <doi:10.1029/2024WR038149> are
        embedded in the loss function: (S1) linearity at the dry end
        (pF in [5, 7.6]); (S2) non-negativity at pF = 6.2; (S3)
        non-positivity at pF = 7.6; and (S4) a near-zero derivative in
        the saturated plateau region (pF in [-2, -0.3]). Includes tools
        for data preparation, model training, dense prediction,
        performance metrics, texture classification, and
        publication-quality visualisation.
License: MIT + file LICENSE
Encoding: UTF-8
SystemRequirements: Python (>= 3.8), TensorFlow (>= 2.14), Keras (>=
        3.0)
LazyData: true
LazyDataCompression: xz
RoxygenNote: 7.3.3
Depends: R (>= 4.1.0)
Imports: dplyr (>= 1.1.0), tidyr (>= 1.3.0), ggplot2 (>= 3.4.0), purrr
        (>= 1.0.0), tibble (>= 3.2.0), stringr (>= 1.5.0), reticulate
        (>= 1.34.0), tensorflow (>= 2.14.0), rlang (>= 1.1.0)
Suggests: keras3 (>= 1.0.0), ggtern, readxl (>= 1.4.0), scales (>=
        1.2.0), knitr, rmarkdown, testthat (>= 3.0.0), withr
Config/testthat/edition: 3
VignetteBuilder: knitr
URL: https://github.com/HugoMachadoRodrigues/soilFlux,
        https://hugomachadorodrigues.github.io/soilFlux/
BugReports: https://github.com/HugoMachadoRodrigues/soilFlux/issues
NeedsCompilation: no
Packaged: 2026-10-28 12:04:50 UTC; root
Author: Hugo Rodrigues [aut, cre] (ORCID:
        <https://orcid.org/0000-0002-8070-8126>)
Maintainer: Hugo Rodrigues <rodrigues.machado.hugo@gmail.com>
Config/pak/sysreqs: libicu-dev libpng-dev python3
Repository: https://hugomachadorodrigues.r-universe.dev
Date/Publication: 2026-03-26 11:17:06 UTC
RemoteUrl: https://github.com/cran/soilFlux
RemoteRef: HEAD
RemoteSha: 13ca36fd74ad99e27c62ebaa990abf71f96e9d9f