Various methods to approximate and visualise the digits of pi using the R computing language for statistics. The apparent randomness of the decimal expression of Pi is a source for beautiful visualisations. Continue reading → The post Approximations of Pi: A Random Walk though the Beauty of Pi appeared first on ...

Concreteness ratings and the lexvarsdatr package Context & concreteness scores Geographical distance FIN References This post considers a super-clever study presented in Snefjella and Kuperman (2015), in which the authors investigate the relationship between psychological distance and geographical distance using geolocated tweets. General idea/hypothesis: The more we perceive an event/entity ...

The tabr package for creating guitar tablature (“tabs”) from R code is now available on CRAN. tabr provides programmatic music notation and a wrapper around LilyPond for creating quality guitar tablature. tabr offers functions for describing and organizing musical structures and wraps around the LilyPond backend. LilyPond is an open ...

IntroYesterday I gave a workshop on applied predictive modelling with caret at the 1st LSE Computational Social Science hackathon. Organiser privileges. I put together some introductory code and started a simple GitHub repo for the participants, so I thought I’d share it here as well. This is not supposed ...

In this post, I talk about performance through an efficient algorithm I developed for finding closest points on a map. This algorithm uses both concepts from mathematics and algorithmics. Problem to solve This problem comes from a recent question on StackOverflow. I have two matrices, one is 200K rows long, ...

A reader recently inquired about functions in simstudy that could generate data for a balanced multi-factorial design. I had to report that nothing really exists. A few weeks later, a colleague of mine asked if I could help estimate the appropriate sample size for a study that plans to use ...

In our next MünsteR R-user group meetup on Monday, June 11th, 2018 Thomas Kluth and Thorben Jensen will give a talk titled Look, something shiny: How to use R Shiny to make Münster traffic data accessible. You can RSVP here: http://meetu.ps/e/F7zDN/w54bW/f ...

This week’s edition of Data is Plural had two really fun data sets. One is serious fun (the first comprehensive data set on U.S. evictions, and the other I knew about but had forgotten: The Federal Register Executive Order (EO) data set(s). The EO data is also ...

ggimage 0.1.4 is available on CRAN. This release introduces a new function called ggbackground for setting image background as ggplot canvas.

require(ggplot2)
p <- ggplot(iris) + aes(x = Sepal.Length, y = Sepal.Width, color=Species) + 
    geom_point(size=5) + theme_classic()

Suppose we have the above ggplot object, p, the only thing we need to do is passing the p with an image file name (local or remote) to ggbackground, ...

What is Machine Learning as a Service? With all of this news coming out about Cambridge Analytica (and how they have leveraged/weaponized data science for…Continue ReadingMachine Learning as a Service