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Load the bundled KSSL/NCSS lab-data sample (v0.9.74)

Source: R/wosis-cache.R
load_kssl_sample.Rd

Returns a 100-profile snapshot from the NCSS Lab Data Mart (KSSL gpkg, head = 100) pre-annotated with derived WRB Reference Soil Group via usda_to_wrb_rsg.

Usage

load_kssl_sample()

Value

A list with pedons, pulled_on, source, cross_walk.

Details

This is the bundled offline counterpart to load_kssl_pedons_gpkg – use this for tests and demos when the 5.5 GB gpkg is not available locally.

Each pedon has BOTH:

  • site$reference_usda (Order, Suborder, Greatgroup, Subgroup) – the canonical KSSL classification.

  • site$reference_wrb_from_usda – the derived WRB RSG via the IUSS WRB 2022 Annex 6 cross-walk.

First-ever KSSL WRB benchmark (soilKey v0.9.74, full v0.9.69-72 fallback stack):

  • Top-1 accuracy: 20.1\

  • Calcisol 69\

  • Phaeozem / Kastanozem / Solonetz 0\ data not in KSSL lab tables (in companion NASIS).

Reference

Beaudette, D., Skovlin, J., Roecker, S., Brown, A. (2024). aqp: Algorithms for Quantitative Pedology. R package version 2.x. https://github.com/ncss-tech/aqp.

Examples

if (FALSE) { # \dontrun{
s <- load_kssl_sample()
length(s$pedons)
#> 100
table(vapply(s$pedons, function(p) p$site$reference_wrb_from_usda,
             character(1)))
} # }