getAssortment: Get assortments for one or many trees

In rBDAT: Implementation of BDAT Tree Taper Fortran Functions

Get assortments for one or many trees

Description

Function to get assortments given harvest specifications for a tree of dimension D1, possible D2, and H. Assortments could be diameter or length constrained.

Usage

getAssortment(tree, ...)

## S3 method for class 'data.frame'
getAssortment(tree, sort = NULL, mapping = NULL, value = "merge", ...)

## S3 method for class 'list'
getAssortment(tree, sort = NULL, mapping = NULL, value = "merge", ...)

## S3 method for class 'datBDAT'
getAssortment(tree, sort = NULL, mapping = NULL, value = "merge", ...)

Arguments

tree	either an object of class 'datBDAT.assortment' or a data.frame or list containing the variables needed, i.e. spp, D1, H, and optionally H1, D2, H2 for specifying the tree. See buildTree for more information and parameter mapping for mapping of variable names. Indeed, tree could additionally take the variables specified in sort; otherwise a full outer join is produced between tree and sort
...	passing arguments to methods.
sort	named list with variables specifying assortments, see buildTree.
mapping	mapping of variable names in case a data.frame is given into parameter tree between colnames(tree) and required parameter names. See details.
value	character vector indicating return type: either "Vol", "Skl", "Fix", "LDSort", "merge" (default) or "raw". See section Value.

Details

Parameter 'tree' is able to take either a data.frame with correct variables names or arbitrary names if mapping is provided to map the data.frame names to the required names by c("df-colname" = "var-name") or to take a named list.

Assortments are calculated using BDAT2.0 Fortran routines. Slightly extended, it now is possible to return length and diameter information also about standard assortments (which are held in "Vol"-element of return list, if value="raw" or value="Vol").

The standard assortment names are:

• X = non-usable wood at stem foot (X-Holz)

• Sth = stem wood

• Ab = upper part of stem wood, second length after transport cut

• Ind = industrial wood

• nvDh = non-usable coarse wood

Value

depending on value either information about 'Skl,' 'Vol' or 'Fix' (these are elements of standard output of Fortran BDAT20 subroutine) and, additionally, information about the 'Vol' elements is retrieved by value="LDSort" or if value = 'merge' than a combined information of all produced assortments with name, base position, assortment length, mid-diameter, top-diameter and volume is produced. This is most likely what you want, hence the default. Standard output of BDAT is provided by value="raw". Since v0.4.0 a vectorized BDAT-fortran-function is implemented, so each element of the returned list in case of value="raw" keeps information of all trees given. Make sure to appropriately split and manipulate this data.

Methods (by class)

• data.frame: transforming data.frame before calling getAssortment using buildTree

• list: transforming list before calling getAssortment using buildTree

• datBDAT: class method for class datBDAT

See Also

BDATVOLABMR and BDATVOLABOR for a BDAT-type wrapper and function to keep back-compatability. To get coarse wood volume over bark (>=7m diameter over bark) BDAT-type functions are BDATVOLDHMR and BDATVOLDHOR.

Examples

tree <- data.frame(spp = 1, D1 = 30, H = 25)
sort <- list(Az = 7, Sokz = 1)
getAssortment(tree, sort, value = "Vol")
getAssortment(tree, sort, value = "Skl")
sort <- list(Az = 7, Sokz = 1, fixN = 1, fixZ = 10, fixL = 5,
             fixA = 10, fixR = 1)
getAssortment(tree, sort, value = "Vol")
getAssortment(tree, sort, value = "Skl")
getAssortment(tree, sort, value = "Fix")
getAssortment(tree, sort, value = "LDSort")
getAssortment(tree, sort, value = "merge")

## prepare data for repeated sorting
## (get rid of preparating data handling)
n <- 3
tree <- data.frame(
  spp = rep(1, n), D1 = seq(20, 50, length.out = n),
  H = seq(15, 40, length.out = n)
)
sort <- list(lX = 0, Sokz = 1, Az = 7,
             fixN = 2, fixZ = 10, fixL = 5,
             fixA = 10, fixR = 1)
tree <- buildTree(tree = tree, check = "assortment", vars = sort)
getAssortment(tree, value = "Vol")
getAssortment(tree, value = "Skl")
getAssortment(tree, value = "Fix")
getAssortment(tree, value = "LDSort")
getAssortment(tree, value = "merge")

## to get bare BDAT-Output, use value='raw'
# very long list, each element keeping all trees
getAssortment(tree, value="raw")
# bonus: it returns the calling parameters as well

rBDAT documentation built on Oct. 14, 2022, 5:07 p.m.