Articles by Marcin Kosiński

Unpacking immigration collocations

March 13, 2019 | 0 Comments

As part of our road to detecting metaphors we got stuck on a simple problem: compound nouns. If you take the sentence: series of immigration policy changes Series modifies changes in reference to immigration policy, which is a compound noun. “Series of changes” is not what we would consider metaphorical ...
[Read more...]

Why R? 2018 Conference – After Movie and Summary

November 7, 2018 | 0 Comments

For us, R is not about packages and data analysis. It is about a vibrant community that creates all those wonderful toys. As the Why R? Foundation we want to take part in the growth of the R user base. One of our first efforts is the Why R? conference ... [Read more...]

Why R? 2018 Conf – CfP ends May 25th

May 22, 2018 | 0 Comments

We are pleased to announance upcoming Why R? 2018 conference that is going to happen in central-eastern Europe (Poland, Wroclaw) this July (2-5th). It is the last week for the call for papers! Submit your talk here. About More about the conference one can find on the conference website whyr2018....
[Read more...]

Why R? 2018 Conference – Registration and Call for Papers Opened

April 25, 2018 | 0 Comments

The first edition of Polish R Users Conferences called Why R? took place on 27-29 September at Warsaw University of Technology - Faculty of Mathematics and Information Science. The event was so successful that we’ve decided to launch a second edition of the conference. About the Why R? 2018 conference ...
[Read more...]

Flip axes in plotly histograms – few approaches

November 29, 2017 | 0 Comments

This seems easy as it requires just to change x parameter to y in the plot specification. Well, there are some edge cases where R users might get a in trouble! library(plotly) packageVersion('plotly') [1] '4.7.1' Before you go, let me just expla... [Read more...]

Why R?

November 27, 2017 | 0 Comments

The first edition of Polish R Users Conferences called Why R? took place on 27-29 September at Warsaw University of Technology - Faculty of Mathematics and Information Science. The Polish R community is very strong. Dig in into the post to find out wh... [Read more...]

FSelectorRcpp on CRAN

March 14, 2017 | 0 Comments

FSelectorRcpp - Rcpp (free of Java/Weka) implementation of FSelector entropy-based feature selection algorithms with a sparse matrix support, has finally arrived on CRAN after a year of development. It is also equipped with a parallel backend. Big th... [Read more...]

3rd Birthday of Warsaw R Enthusiasts Group

March 13, 2017 | 0 Comments

This Thursday Warsaw R Enthusiasts Group (in polish Spotkania Entuzjastów R - SER - cheese) celebrated it’s 3rd birthday! Check this post to find out what we have prepared for this special occasion. Summary of three years of the group activity ... [Read more...]

Use switch() instead of ifelse() to return a NULL

February 21, 2017 | 0 Comments

Have you ever tried to return a NULL with the ifelse() function? This function is a simple vectorized workflow for conditional statements. However, one can’t just return a NULL value as a result of this evaluation. Check a tricky workaround solution... [Read more...]

Comparing (Fancy) Survival Curves with Weighted Log-rank Tests

February 9, 2017 | 0 Comments

We have just adopted weighted Log-rank tests to the survminer package, thanks to survMisc::comp. What are they and why they are useful? Read this blog post to find out. I used ggthemr to make the presentation a little bit more bizarre. Log-rank statistic for 2 groups Weighted Log-rank extensions Why ... [Read more...]

Controlling Expenses on Ali Express with RSelenium

January 8, 2017 | 0 Comments

Due to the incrising interest in the Internet and due to the its rising number of users, one can notice the surprising growth in the demand for analyzing data and information in the Internet that were left by users and for users. Many companies and in... [Read more...]

News from archivist 2.0 on eRum2016 conference

October 26, 2016 | 0 Comments

Ten days ago eRum2016 conference (European R Users Meeting 2016) has finished. It was a huge event that attracted over 250 attenders, both from academia and business. Meeting was a great opportunity to listen to amazing keynotes like Heather Turner, K... [Read more...]

Mini R Quizzes

October 25, 2016 | 0 Comments

Data Science is sometimes a stressful and responsible job… so we spontaneously organize mini R quizzes in our R team at the company! Chaining R packages One of my favourite fast 5-minutes long R game is chaining R packages. One person says the nam... [Read more...]

Warsaw R-Ladies

October 21, 2016 | 0 Comments

First Warsaw R-Ladies Workshops were held yesterday! Over 100 R-Ladies have registered for the event! In this post I present notes from this meeting and provide some pictures of the beauty part of R. You can also learn a bit about the gender gap in th... [Read more...]
1 2 3

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)