First of all, the question is 'Why Use R'. One source answers that question thus:
R is the leading tool for statistics, data analysis, and machine learning. It is more than a statistical package; it's a programming language, so you can create your own objects, functions, and packages.
Speaking of packages, there are over 2,000 cutting-edge, user-contributed packages available on CRAN (not to mention Bioconductor and Omegahat). Many packages are submitted by prominent members of their respective fields.
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For Beginners in R, here is a 15 page example based tutorial that covers the basics of R.
These tutorials are designed for beginners in R, but they can also be used by experienced programmers as a refresher course or as reference. Running loops in R can be slow and therefore the apply group of functions as well as the reshape package can drastically improve the performance of the code.
(Score: 1) by kanweg on Sunday August 28 2016, @10:24AM
I used IGOR many years ago and it was really great. I can only assume that it has not gotten worse.
Fun thing (don't know if it is still in), you could change the history of what you'd done. To do confirm, you got a dialog box saying: Do you want to change history, with to buttons: Da and Njet.
Bert