R on Visual Cinnamon

Exploring the art hidden in π

Sat, 24 Jan 2015 00:00:00 +0000

While browsing online I came across several examples of Martin Krzywinski’s Pi art works and I was inspired to try and do a small project with the digits myself. I wanted to try and create something that wasn’t very informative per se, but hopefully pretty to look at, more like art.

How to create a hexagonal heatmap in R

Wed, 13 Nov 2013 00:00:00 +0000

Like I wrote in one of my previous posts on the creation of a “self organizing map” program in R, I really wanted the results of a SOM visualized in a hexagonal heatmap, so I wrote my own piece of code for it.

On the creation of a “self organizing map” program in R

Mon, 22 Jul 2013 00:00:00 +0000

I’ve been using self organizing maps (or SOM) to analyse client data for more than a year now. In the beginning I tried some commercial software, but I did not like the fact that it was too easy to just randomly click some buttons and a map showed up. I wanted to know what was happening under the hood.

Plotting survival analysis results in R with ggplot2

Sun, 14 Jul 2013 00:00:00 +0000

Even though R has been my favorite language to program in since a few months, one thing it is not designed to do is make your plots look anywhere near good. With this I mean that those plots are not the stuff I can just save and put into a client presentation.