% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics-spodosols-usda.R
\name{duric_subgroup_usda}
\alias{duric_subgroup_usda}
\title{Duric Subgroup helper (USDA Spodosols)}
\usage{
duric_subgroup_usda(pedon, max_top_cm = 100)
}
\arguments{
\item{pedon}{A \code{\link{PedonRecord}}.}

\item{max_top_cm}{Default 100.}
}
\value{
A \code{\link{DiagnosticResult}}.
}
\description{
Pass when a pedogenically cemented horizon (extremely weakly
coherent or stronger) is present in 90\%+ of the pedon within
100 cm. v0.8 proxy: any horizon with cementation_class >= "weakly".
}
