Suppose that you've run some function foo() in MATLAB and it complains that another function bar() is not found. You immediately realize that a directory with bar() is not in path and add this directory. Oops, stop on error flag is set, so we are in debug mode. Leave that mode by pressing Shift+F5 and re-run foo().
Surprisingly, you will see the same error message again! The reason is that your path changes were applied in temporary workspace of the debugger. So, by leaving debug and moving back to the original workspace you have reverted all path changes. Long story short, always double-check which environment you are in before applying any changes.
In this series of posts we will learn logistic regression classifier in three ways: supervised, unsupervised and something in between. We will find out that for some machine learning problems you need only a few labels for your data to get a decent model. Continue reading Clustering via mutual information maximization. Part 1
In the first part of this post we considered a human-based binary random numbers generator and built a predictive model for it. The model appeared to work better than a coin toss, at least for a short sequence we had. This part develops more complex models with somewhat higher accuracy. Continue reading Prediction of random numbers. Part 2
Following up previous post, I've decided to add some motion. Continue reading Animated fractal
In this post I'll describe an algorithm that builds images similar to this one: Continue reading Generating fractal-like images
Few days ago while conducting some experiments in Octave, I've noticed a weird behaviour. For array containing several equal elements mean value was significantly different from actual value of each of them... Continue reading Deviation of mean