first_hierarchy {ODMeans}

First Hierarchy Function

Description

First Hierarchy Function

Usage

first_hierarchy(data, numK, limitsSeparation, maxDist, kmeans_pp = FALSE)

Arguments

data

A data frame with four columns:
Initial Latitude | Initial Longitude | Final Latitude | Final Longitude

numK

Initial number of clusters in the first call of k-means in the global hierarchy.

limitsSeparation

Within cluster distance threshold to determine if a global cluster must be separated into two new clusters.

maxDist

Meter distance threshold used to re-estimate centroids in global hierarchy.

kmeans_pp

Boolean value, if TRUE it initialize centroids using kmeans++.

Value

Returns an S3 class object similar to kmeans S3 Class, with eight properties.

Examples

data(ODMeansTaxiData)
first_hierarchy_data = first_hierarchy(ODMeansTaxiData, 10, 300, 1000)