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I am a data scientist, business consultant, trainer and mentor helping people to develop their data analysis/mining, programming, and project management skills. I can help you get the most of your data, stuff that's there but you didn't notice, answer questions you were afraid to ask because of their complexity.

I'm a true R hacker and enthusiast since the Paleozoic era of R_1.4.0. I'm an author of a book on advanced R programming and many R packages, including the famous stringi package. Computer programmer since the age of 7 (R, C/C++14, Python, Cython, PHP, Java, bash, and many more).

I have a Ph.D. in computer science and specialize in data aggregation, fusion and mining, computational statistics, and uncertainty modeling.

See my GitHub profile for the projects I'm currently working on. And if you speak Polish, I recommend you my book on R programming.

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