Nov 25, 2013 — Introduction to Weka — I’m new to using Weka, so I thought that it would be useful to log my steps. Data Import It’s likely that you will need to export your from your statistical software of choice by formatting it in the .arff... Read more

Nov 4, 2013 — Looking In — so sharp was the edge of that flesh, a deep burgandy stained with fermentation such rush was the pound in my chest hesitant, and filled with trepidation. My eyes upon you I started at your base a thick, and dense,... Read more

Oct 26, 2013 — Cluster Validation — Unsupervised clustering can be tough in situations when we just don’t know “the right number” of clusters.  In toy examples we can sometimes use domain knowledge to push us toward the right answer, but what happens when you really haven’t... Read more

Sep 11, 2013 — Functional Brain Network Visualization — Now that we have (finally) come up with a correlation matrix to describe the relationship of voxels across the brain, let’s explore some simple methods from graph theory.  To make this analysis somewhat more simple, I’ve thresholded my brain network... Read more