CS 251: Project #6

Project 6: Clustering Analysis

Project due Monday night Apr 7, 2014

The purpose of this assignment is to make it possible to visualize your clustering results. We will do this by augmenting data files with their clustering results. This way, you can visualize the result without making any changes to your display program. If you would like to explicitly add clustering to your display, that will be an extension.


Tasks

  1. Add the necessary code to your Data class to make it possible to write a data file. Your goal will be to write out the data used to do the clustering plus the cluster indices that are returned from the k-means function. You may want to write a specialized write routine to do this, or you may want to use two steps (1. add the cluster indices as a new column, 2. write the Data object out to a file). (The latter is preferred.) (Note also that you may want to include all columns of the data and the cluster indices, rather than just the columns used for the clustering and the cluster indices. That way, you can cluster the Australia data set without latitude and longitude, but display the clusters with latitude and longitude.)
  2. Test your clustering on the file AustraliaCoast.csv. Use 10 clusters and visualize the result using three variables, such as premax, maxairtemp, and maxsoilmoist.
  3. Execute a clustering on a data file of your choice, using the analysis to demonstrate something about the data set. If necessary, you may construct a data set that works well with clustering. If that is what you do, then you should describe how you created the data set.

Extensions


Writeup

For this week's writeup, create a wiki page that shows your clustering visualizations, analyzes the results of your clustering from task 3, and explains any extensions.

Handin

Once you have written up your assignment, give the page the label:

cs251s14project6

Put your code in a folder named Proj6 on the Courses/CS251 server in your private subdirectory.