• Database management with R DBI package

    Databases are everywhere and they have been used for many years in many areas. They are mostly irreplaceable; however, one can always find any quick and dirty alternative. Package DBI is at your service, if you have your data in one of the DBI compliant database (in ... Read more
  • Mastering RStudio IDE... Packages, add-ins and shortcuts

    RStudio is the best IDE so far to use R. Its power is not only coming from the great developers behind it but also it’s an open source product which can be developed and maintained by contributors. I compile a list of some keyboard shortcuts, packages to increase per... Read more
  • Product pricing analysis & Shiny app

    I have recently been introduced to a basic but nice problem that involves pricing a product and transport productions. This is a basic cost and revenue analysis problem that consists of defining and analyzing a delivered price, which includes all production, logistic... Read more
  • Notes on A/B testing and its statistical implications

    Websites should often change their designs to catch up and get up to date. A/B testing, or as some call it, split testing is a method that shows your users two (or more) variants of your website within a timeframe and the decision on what variation is most effectiv... Read more