CODEWITHSUNDEEP
r
ewalel
ewalel

Reputation: 2096

How to retrieve the original data points that belong to every cluster from dbscan algorithm using R

I am using library("dbscan") to cluster geographical data with latitude and longitude. I would like to know which coordinates [latitude, longitude] are belonging to which cluster in R. Is there any way to retrieve the original data points under each cluster? Example:

latitude = c(60.95886,63.04287,60.79435,61.79435, 64.79435, 61.95886,65.04287,66.79435,63.79435, 65.79435,66.79435, 68.79435,69.79435 )

longitude = c(27.79045,22.87444,24.51007, 23.49429, 23.49429, 28.79045,23.87444,26.51007, 25.49429, 26.49429,26.49429, 29.49429,30.49429)

testData = data.frame(latitude,longitude)

clust <- dbscan(testData, eps = 1.5, minPts = 3)

clust

DBSCAN clustering for 13 objects.
Parameters: eps = 1.5, minPts = 3
The clustering contains 2 cluster(s) and 7 noise points.

0 1 2 
7 3 3

Here I want to know the data points from testData belonging to cluster 1 and 2

Upvotes: 1

Views: 924

Answers (1)

agenis
agenis

Reputation: 8377

add the output of dbscan to your initial data.frame.

testData$cluster = clust$cluster

Upvotes: 1

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