treeVolEst_RegRatio_New: Estimate volume for H-enhanced and non-enhanced trees-VRI...

Description Usage Arguments Value Author(s)

View source: R/treeVolEst_RegRatio_New.R

Description

This function estimates the volumes for JH-enhanced and non-enhanced trees using BA-WSV equation and toWSV ratio methods. For H-enhanced trees, the whole stem volume and gross merchantable volume are already calculated directly using taper equations; and rest of volume components will be calculated using ratio method in this function. For non-enhanced trees, the whole stem volume is derived using regression equation between basal area and whole stem volume and the rest of volume components will be computed using ratio method in this function.

Usage

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treeVolEst_RegRatio_New(nonVolTrees, fixedCoeffTable, randomCoeffTable,
  ratioTable)

Arguments

nonVolTrees

data.table, H-enhanced trees and non-enhanced trees.

fixedCoeffTable

data.table, Specifies the WSV-BA equations by project group PRJ_GRP, live and dead status LV_D, stand and falling status SF_COMPILE and species code SP0. The table can be generated using WSV_BARegression.

randomCoeffTable

data.table, Specifies the WSV-BA equations by project group PRJ_GRP, live and dead status LV_D, stand and falling status SF_COMPILE and species code SP0. The table can be generated using WSV_BARegression.

ratioTable

data.table, Specifies toWSV ratio by project group PRJ_GRP, live and dead status LV_D, stand and falling status SF_COMPILE and species code SP0. The table can be generated using toWSVRatio.

Value

A data table that has compiled non volume trees.

Author(s)

Yong Luo


bcgov/BCForestGroundSample documentation built on May 25, 2019, 3:21 p.m.