what is the difference between a FolderView and Centroid View?

charansaireddy2

I have perfromed a Cluster Analysis using the K-means operator. I have a result. But I am not able to differentiate between the Centroid view and Folder View. Does both of them show the same reusult or are they completely different? I am posting pictures of my result.centroid viewFoler View

sgenzer

Hi @charansaireddy2 - that's a good question. The "centroid view" shows you the value of the centroid for each cluster for each attribute. For example, in the Iris tutorial data set, you get this centroid table:

 

 

Now if you make a simple scatterplot of the data, the centroids become clear:

 

Iris data set with three clusters and centroids indicated by X's.'

(note that cluster_0 is blue/iris-virginica, cluster_1 is red/iris-setosa, cluster_2 is green/iris-versicolor).

 

The "folder view" is simply a list of the id values of each element in the cluster:

 

Iris data set clusters - note that id_50 is in cluster_1, id_51 is in cluster_0, id_52 is in cluster_2, and id_53 is in cluster_0 againFolder view - note that id_51 and id_53 are both in cluster_0's folder

 

Scott