R is currently one of the most popular tools for data analysis. It is also a tool that helps automating data analysis. You can use R to create your own functions, do complicated calculations, transform and aggregate data, build statistical models or use data mining techniques and in the end present your results on practical and esthetic charts and reports. Since R is an open source language and software there is a large community involved in developing and improving it. Thanks to that R is continuously updated and contains packages using the latest and most advanced techniques in data analysis and statistics. R is widely popular among companies, banks, universities and public institutions.