Mahout under the Mahout-example package provides the classes to generate a sample dataset. In this class, it runs the reference clustering implementations over them.
For Fuzzy K-means,
DisplayFuzzyKmeans is the class that displays the cluster. You can directly run the class. As per the code in the class, points are generated as follows:
generateSamples(500, 1, 1, 3); // 500 samples of sd 3 generateSamples(300, 1, 0, 0.5); //300 sample of sd 0.5 generateSamples(300, 0, 2, 0.1); //300 sample of sd 0.1
Once you will run this class, you will view the clusters, as shown here:
The bold red color is the final clustering done by the algorithm. ...