Package: metrictrails
Title: Processing of GNSS Streams from Sports Watches
Version: 1.0.0
Authors@R: 
    person(given = "Raimundo",
           family = "Sanchez",
           role = c("aut", "cre"),
           email = "raimundosanchezu@gmail.com",
           comment = c(ORCID = "0000-0003-2242-1335"))
Description: Tools to read, clean and standardise GNSS (Global
        Navigation Satellite System) streams recorded by sports watches
        and similar devices, with a focus on trail and mountain
        running. The pipeline reads GPX files, applies a naming
        convention, sanitises coordinates (Kalman, LOESS, Gaussian
        kernel or Savitzky-Golay smoothing, and red flags for
        implausible readings), resamples the trajectory to a uniform
        spatial resolution derived from the Nyquist criterion, and
        replaces elevation with values from a Digital Elevation Model.
        Derived measures include speed, slope, elevation gain and
        kilometre-effort, Tobler hiking function parameters fitted by
        quantile regression, comparison between streams, detection of
        passes along a route and map matching to a known reference
        trail by dynamic programming. Methods follow Sanchez and
        Villena (2020) <doi:10.1177/1754337120918975>, Sanchez et al.
        (2024) <doi:10.1109/ICECET61485.2024.10698606>, Sanchez et al.
        (2025) <doi:10.1177/17543371251341660> and Martinez, Sanchez
        and Diaz (2026) <doi:10.1109/ICECET65726.2026.11632531>.
URL: https://github.com/raimun2/metrictrails
BugReports: https://github.com/raimun2/metrictrails/issues
License: MIT + file LICENSE
Encoding: UTF-8
LazyData: true
Depends: R (>= 4.1)
Imports: magrittr, sf, stats, terra, tibble, utils
Suggests: curl, knitr, rmarkdown, testthat (>= 3.0.0)
VignetteBuilder: knitr
Config/testthat/edition: 3
Config/roxygen2/version: 8.1.0
NeedsCompilation: no
Packaged: 2026-10-21 21:03:05 UTC; root
Author: Raimundo Sanchez [aut, cre] (ORCID:
        <https://orcid.org/0000-0003-2242-1335>)
Maintainer: Raimundo Sanchez <raimundosanchezu@gmail.com>
Repository: https://cran.r-universe.dev
Date/Publication: 2026-10-21 15:20:02 UTC
RemoteUrl: https://github.com/cran/metrictrails
RemoteRef: HEAD
RemoteSha: 3c722c2732253cd74552a2cf7aabeb70f33e09b5