apply_volume_eq: Apply volume equation

In SilviaTerra/rpnc250: R implentation of USFS Research Paper NC-250: Tree Volume and Biomass Equations for the Lake States

Apply volume equation

Description

Apply the volume equation (eq. 1 in publication) from RP NC-250 using provided dbh, height to merchantable limit, and coefficients from Table 1 in the publication.

Usage

apply_volume_eq(dbh, height, b0, b1)

Arguments

dbh	vector of DBH observations in inches
height	vector of heights to which to estimate volume
b0, b1	vector of model coefficients from Table 2 or Table 3

Details

The volume equation is as follows:

V = b_0 + b_1 D^2 H

Where:

• V is the volume in either cubic feet or board feet

• b_0 and b_1 are species specific coefficients from Table 1

• D is diameter at breast height in inches

• H height to which volume is to be computed

Value

vector of volume estimates

Examples

## Not run: 
apply_volume_eq(
  dbh = 10,
  height = 40
  b0 = table2$b0[1],
  b1 = table2$b1[1]
)

## End(Not run)

SilviaTerra/rpnc250 documentation built on March 28, 2023, 12:45 a.m.