Jun 13, 2013 — Linear Regression — What is Linear Regression? What does a dataset look like? How do we fit a model? Batch Gradient Descent Stochastic Gradient Descent The Normal Equations Summary What is Linear Regression? Linear regression is modeling some linear relationship between a dependent... Read more

Jun 12, 2013 — FDR Correction — The False Discovery Rate (FDR) is a method used to correct for multiple comparisons in a statistical test. It is abstractly a method that gives us the idea of the false positive rate not for one single hypothesis, but for... Read more

Mar 31, 2013 — Brain Message 1.0 to Write Secret Messages into fMRI — Have you ever seen interesting shapes emerge as components when running independent component analysis (ICA) on resting BOLD functional MRI (fMRI) data? What comes to mind is the one time I swear that I saw the Koolaid Pitcher mascot, and... Read more

Mar 25, 2012 — MATLAB libc.so.6 not found error Fix — For as long as I’ve had linux, my MATLAB spits out the following “not found” error on startup: .../MATLAB/bin/util/oscheck.sh: 605: /lib/libc.so.6: not found </pre> However it is clear that I have the library: locate libc.so.6 /lib/i386-linux-gnu/libc.so.6 </pre> The answer is... Read more