Home-made queuing simulation software

Visualization of effects of prioritizing customers/jobs. Queue 1 gets priority over both Queue 2 & 3 while Queue 2 gets priority over Queue 3

Visualization of effects of prioritizing customers/jobs. Queue 1 gets priority over both Queue 2 & 3 while Queue 2 gets priority over Queue 3

Near the end of my PhD I started volunteering for RESAAS. They were interested in modelling the traffic on their website. So I developed some simulation software in C#. They were kind enough to let me publish parts of this program.

The main part of the software is a simulation program which compares a queueing system where customers are served on a First-Come-First-Served basis with a queueing system where some customers get priority over others. A detailed explanation for the program can be found here. The C# code is avaiable on GitHub.

Learning R with Twitter API

During my time at the university I mostly worked with SAS. However, since then R has made a rapid development and I decided to learn R using the free e-book “An Introduction to Data Science” by Jeffrey Stanton. The power of R with all the available packages is amazing. Among others I learned how to extract tweets from Twitter with a given hashtag and make a wordcloud out of all these tweets. Examples below:

Wordcloud for #statistics

Wordcloud for #statistics

Wordcloude for #bigdata

Wordcloude for #bigdata