diam: Calculate Mean Diameters

In cszang/sawmill: Metrics for Forest Growth and Yield Science

Description

Calculate mean diameters in many different ways

Usage

diam(x, method = c("ar", "qmd", "gfz", "do", "d200", "dw"), s = 1, a = 1)

Arguments

x	a vector of diameters
method	"ar" for arithmetic, "qmd" for quadratic mean diameter, "gfz" for Grundflaechenzentralstamm, "do" for dominant diameter based on basal area of 100 largest trees per ha, "d200" for dominant diameter based on basal area of 200 largest trees per ha, and "dw" for Weise'sche Oberhoehe.
s	class size (integer)
a	size of area in ha

Details

Provides some commonly used mean diameters for forest growth and yield science.

Value

a numeric vector with diameters

Examples

d <- rnorm(40, mean = 50, sd = 3)
diam(d)

cszang/sawmill documentation built on May 14, 2019, 12:27 p.m.