findProcessingLevel: Find Processing Level

In SWS-Methodology/faoswsStandardization: Package to perform standardization of SUA (supply utilization account) data to FBS level

Description

The function finds the processing level of the item in relation to the rest of the commodity items. The processing level is zero for all nodes which have no inputs (i.e. they can be processed in the first round). A node with inputs has it's processing level defined as 1 greater than the max processing level of all of it's input nodes. Thus, nodes at level 0 are processed first, as their processing doesn't depend on any other commodites. Then, nodes at processing level 1 are processed because all their inputs (level 0 nodes) have been computed. All nodes at a fixed processing level can thus be computed in one step.

Usage

findProcessingLevel(edgeData, from, to, plot = FALSE,
  aupusParam = list(itemVar = "temp"), errorOnLoop = TRUE)

Arguments

edgeData	The edge data, typically from the function buildEdges
from	The column name of edgeData corresponding to the from node.
to	The column name of edgeData corresponding to the target node.
plot	Logical, indicates of the graph should be plotted.
aupusParam	A list of running parameters to be used in pulling the data. Typically, this is generated from getAupusParameter (see that function for a description of the required elements).
errorOnLoop	Logical. Should the function throw an error if a loop is detected in the edgeData? If such a loop is detected, a plot is generated to aid the user in finding this loop.

Value

A data.table providing the processing level for each of the items.

SWS-Methodology/faoswsStandardization documentation built on Feb. 7, 2022, 5:05 a.m.