k-means clustering: ncluster value other than 2

[RajeshKumarS]

Setting ncluster to greater than 2 (tried with 3 & 4) gives the following error:

IndexError: arrays used as indices must be of integer (or boolean) type.

Following is the full dump:

Time: 0.0
Traceback (most recent call last):
File "d:/apps/PythonRobotics-master/Mapping/kmeans_clustering/kmeans_clustering.py", line 179, in
main()
File "d:/apps/PythonRobotics-master/Mapping/kmeans_clustering/kmeans_clustering.py", line 161, in main
clusters = kmeans_clustering(rx, ry, ncluster)
File "d:/apps/PythonRobotics-master/Mapping/kmeans_clustering/kmeans_clustering.py", line 41, in kmeans_clustering
clusters = calc_centroid(clusters)
File "d:/apps/PythonRobotics-master/Mapping/kmeans_clustering/kmeans_clustering.py", line 54, in calc_centroid
x, y = calc_labeled_points(ic, clusters)
File "d:/apps/PythonRobotics-master/Mapping/kmeans_clustering/kmeans_clustering.py", line 88, in calc_labeled_points
x = tx[inds]
IndexError: arrays used as indices must be of integer (or boolean) type

Also, I still got two clusters even if ncluster was set to 1.

[github-actions]

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[AtsushiSakai]

@RajeshKumarS Thank you for reporting. You are totally right. I fixed the code. If you encounter the problem again, please reopen or make a new issue. Thank!!

[RajeshKumarS]

@AtsushiSakai Thanks. It works fine and am able to use it without any problem. Thanks again.