Assessing Clustering Tendency in R

In clustering one of major problem a researcher/analyst face are two question. First, does the given dataset has any clustering tendency?And second, how to determine an optimal number of clusters in a dataset validate the clustered results. In this post, I have attempted to answer this using R

Clustering with Weka 3.6 part-1

1. Download and install Weka 3.6 from here 2. Follow this blog to convert your data file to ARFF format 3. Click on ‘open file’ and select the .arff file that you created in step 2. This will open the dataset in the Weka Preprocess window. Please look at the screenshot below. 4. Click on “Cluster” tab…