Articles by r-tastic

Webscraping with R – from messy & unstructured to blisfully tidy

January 25, 2020 | 0 Comments

I stopped caring about the estimates that occasionally raid the internet about how much time data scientists spend on data wrangling VS modelling. The answer is: probably a lot and likely more than originally planned (probably indicating here dependency on the state and richness of input data and the intended ...
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January 25, 2020 | 0 Comments


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My R Take in Advent of Code – Day 5

January 2, 2019 | 0 Comments

There’s no time to lose, so here comes another Advent of Code puzzle solved using R. Day 5 challenge, here we come! What are we expected to do? The polymer is formed by smaller units which, when triggered, react with each other such that two adjacent units of the same ... [Read more...]

My R Take on Advent of Code – Day 4

January 1, 2019 | 0 Comments

After some wonderful Christmas and New Year’s distractions, now it’s time to continue with my Advent of Code challenges in R (before the summer comes…). To avoid waffling, the 4th puzzle offers a record of guards’ shifts with various activities plus the time they started and time. We ... [Read more...]

End of 2018 Thoughts

December 30, 2018 | 0 Comments

Here we are, ending yet another year and starting something new. I wanted to take a minute to dwell on 2018, what happened in my R world this year and reflexions I take from that. public speaking This year started for me with a bang - as a result of my ... [Read more...]

My R Take on Advent of Code – Day 3

December 27, 2018 | 0 Comments

Ho, ho, ho, Happy Chris.. New Year? Between eating the sea of fish (as the Polish tradition requires), assembling doll houses and designing a new kitchen, I finally managed to publish the third post on My R take on Advent of Code. To keep things short and sweet, here’s ... [Read more...]

My R take on Advent of Code – Day 2

December 18, 2018 | 0 Comments

This is my second blog post from the series of My R take on Advent of Code. If you’d like to know more about Advent of Code, check out the first post from the series or simply go to their website. Below you’ll find the challnge from Day 2 ... [Read more...]

My R take on Advent of Code – Day 1

December 16, 2018 | 0 Comments

Ho, ho, ho! It’s almost Christmas time and I don’t know about you, but I can’t wait for it! And what can be a better way of killing the waiting time (advent!) than participating in excellent Advent od Code. Big thanks to Colin Fay for telling me ... [Read more...]

Exploring London Crime with R heat maps

August 25, 2018 | 0 Comments

Recently, I had a real pleasure to work with various types of data pulled from public APIs, one of them being API. Oh, those hours of pure intellectual exploration it’s given me! I have a soft spot for crime data and I explored it using heat ...
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First post in new r-tastic

August 24, 2018 | 0 Comments

OK, it had to happen and here it is: I moved my old r-tastic blog to blogdown and I’m not going to look back :) There are numerous resources that will: highlight the advantages of using blogdown with Hugo over other static site generators, such as J... [Read more...]


August 24, 2018 | 0 Comments

About r-tastic Data without insights are just meaningless series of numbers or characters. I love diving deep into new datasets, discovering new patterns and exceptions. Getting familiar with data and saying “I know something about you now”, at the end. And that’s exactly what I’m going to do ... [Read more...]

Prime hints for running a data project in R

March 17, 2018 | 0 Comments

I’ve been asked more and more for hints and best practices when working with R. It can be a daunting task, depending on how deep or specialised you want to be. So I tried to keep it as balanced as I could and mentioned point that definitely helped me ...
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Trump VS Clinton Interpretable Text Classifier

January 25, 2018 | 0 Comments

I’ve been writing/talking a lot about LIME recently: in this blog/ at H20 meetup, or at coming AI Congress and I’m still sooo impressed by this tool for interpreting any, even black-box, algorithm! The part I love most is that LIME can be applied to both image ...
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End of Year thoughts

December 28, 2017 | 0 Comments

Sometimes it’s worth making New Year resolutions… A year ago I made one for 2017 to start an R blog using RMarkdown and Jekyll static sites. At the time, I didn’t even know git that well, had no clue what static sites are and was mostly oblivious to the ... [Read more...]

Star Wars Vs Star Trek Word Battle

December 15, 2017 | 0 Comments

It will go without saying that I’m super excited about the premiere of another Star Wars movie and I’m not an exception. This, together with with Piotr Migdal’s challenge posted on Data Science PL group on Facebook where he suggested comparing word frequencies between two different sources. ...
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Automated and Unmysterious Machine Learning in Cancer Detection

November 6, 2017 | 0 Comments

I get bored from doing two things: i) spot-checking + optimising parameters of my predictive models and ii) reading about how ‘black box’ machine learning (particularly deep learning) models are and how little we can do to better understand how they learn (or not learn, for example when they take a ...
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Friendships among top R-twitterers

August 12, 2017 | 0 Comments

Have you ever wondered whether the most active/popular R-twitterers are virtual friends? :) And by friends here I simply mean mutual followers on Twitter. In this post, I score and pick top 30 #rstats twitter users and analyse their Twitter friends’ network. You’ll see a lot of applications of rtweet ...
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Animated Plots As Part Of Exploratory Data Analysis

May 29, 2017 | 0 Comments

The internet seems to be booming with blog posts on animated graphs, whether it’s for more serious purposes or not so much. I didn’t think anything more of it than just a gimmick or a cool way of spicing up your conference talk. However, I’m a total ...
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