get_full_typeConcept: Return the concatenated typeConcepts for ancestors and...

In jacob-ogre/USNVC: Package for the United States National Vegetation Classification

Description

An interesting (and perhaps useful) characteristic of a hierarchical system like the NVC is that nodes inherit information from up and down the hierarchy. More specifically, a node inherits from 'upstream' the character- istics of its direct ancestors, and captures the characteristics of its children ('downstream'). For example, the full description of an NVC Class such as 'Forest & Woodland' would include the information in its typeConcept plus the typeConcepts of the Subclasses, Formations, on down to Associations. An NVC category below the Class level, such as 'Polar Tundra & Barrens', inherits from its children (e.g., 'Arctic Tundra & Barrens') but also from its ancestors ('Temperate to Polar Alpine & Tundra Vegetation' and 'Polar & High Montane Scrub, Grassland & Barrens'). We implicitly understand when we read a typeConcept for, e.g., a 'Formation', that the characteristics of the 'Subclass' and 'Class' are part of the concept. Importantly, a category doesn't inherit from any category outside of its direct ancestry up to 'Class': outside of the lineage there is something that differentiates the category.

Usage

get_full_typeConcept(g, v)

Arguments

g	The graph to be queried
v	The NVC category for which the 'full' typeConcept will be created

Value

A string of all relevant typeConcepts, concatenated with ' | '

Examples

get_full_typeConcept(NVC_graph, "860275")

jacob-ogre/USNVC documentation built on May 18, 2019, 8 a.m.