weight_vector: Generate Weight Vector from Flows

In flowcluster: Cluster Origin-Destination Flow Data

Generate Weight Vector from Flows

Description

Generate Weight Vector from Flows

Usage

weight_vector(dist_mat, x, weight_col = "count")

Arguments

dist_mat	distance matrix
x	flows tibble with flow_ID and weight_col
weight_col	column to use as weights (default = "count")

Value

numeric weight vector. Each element corresponds to a flow in the distance matrix, and is used as a weight in the DBSCAN clustering algorithm.

Examples

flows <- sf::st_transform(flows_leeds, 3857)
flows <- head(flows, 100) # for testing
# Add flow lengths and coordinates
flows <- add_flow_length(flows)
flows <- add_xyuv(flows)
# Calculate distances
distances <- flow_distance(flows, alpha = 1.5, beta = 0.5)
dmat <- distance_matrix(distances)
wvec <- weight_vector(dmat, flows, weight_col = "count")

flowcluster documentation built on Aug. 21, 2025, 5:54 p.m.