cs_group: Cumulative sum area grouping

In NOAA-OWP/hyAggregate: Hydrologic and Hydrographic Network Aggregating Tools Based on HY_Features

Cumulative sum area grouping

Description

This function takes a vector of areas and lengths and returns a index vector that combines them towards an ideal aggregate area (athres). While enforcing a minimum area (amin) and length (lmin). Additionally, this function can take a set of indexes to exclude over which the network cannot be aggregated.

Usage

cs_group(areas, lengths, exclude, ideal_size_sqkm, amin, lmin)

Arguments

areas	a vector of areas
lengths	a vector of lengths
exclude	a vector of equal length to areas and lengths. Any non NA value will be used to enforce an aggregation break
ideal_size_sqkm	a vector of areas
amin	a threshold, or target, cumulative size
lmin	a threshold, or target, cumulative size

Value

a vector of length(areas) containing grouping indexes

NOAA-OWP/hyAggregate documentation built on Aug. 13, 2022, 1:36 p.m.