Display centroid in Clustering Plots

KNIME Analytics Platform
1

Hello everybody,

is there a way to display the centroid point of each cluster in a Scatter plot ?

Thanks in advance,
Enigma

2

Hi E, please find attached an example of a cluster centroid done in R. I do not know if the native Knimes nodes can display the centroids.

You need to setup R in Knime and have the ggplot2 package installed.

99% of the code belongs to r-bloggers.com “Bot Botany – K-Means and ggplot2”

Best regards

MauKmeans Centroid.knwf (6.5 KB)

Captura
Captura633×635 6.03 KB

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3

The second output port of K-Means node presents the centroids points of each cluster. You might want to modify them (using different color / shape) and then add them to your original dataset to plot all data points together with the clusters centroids.