Scripts implemented for my master's degree thesis work

I worked with MediaWiki's source code, which is written in PHP, so using PHP for these scripts was a natural choice in order to take advantage of Reflection (and a lot of regex).

Our work can be summarized as follows:

• Inspect 2871 Git commits (~114 KLOC involved) :(
• Organize commits into a relational database
• Build tools to calculate metrics from database and source code :(
• Logistic Regression: predict defective classes from the class' metrics

In brief, the findings were:

• Quantity and size of changes made to a class' code predicts its future defects
• Change metrics are better predictors than static ones

This is a companion for the main document available at http://sedici.unlp.edu.ar/handle/10915/93237

"Predicción de defectos en un lenguaje dinámicamente tipado usando métricas estáticas y de cambio"
(Defect prediction in a dynamic-type language using static and change metrics)
Universidad Nacional de La Plata, 2020