carbon.js is the easiest way to create beautiful images of your source code, and carbonate creates an api in R to interact with it. The package gives a new simple way to share your script with the rest of the R community on posters, slides, Shiny apps and social ...

I’m thrilled to announce the release of my new book Reproducible Finance with R: Code Flows and Shiny Apps for Portfolio Analysis, which originated as a series of R Views posts in this space. The first post was written way back in November of 2016 - thanks to all the ...

R is an interpreted programming language with vectorized data structures. This means a single R command can ask for very many arithmetic operations to be performed. This also means R computation can be fast. We will show an example of this using Conway’s Game of Life. Conway’s Game ...

Mean reversion is the assumption that things tend to revert back to their means in the long run. This is especially true for valuations and certain macroeconomic variables, but not so much for stock prices themselves. In this post we'll look at the mean reversion of different valuation measures by ...

Full many a gem of purest ray serene, The dark unfathomed caves of ocean bear; Full many a flower is born to blush unseen, And waste its sweetness on the desert air. Thomas Gray, An Elegy Written In A Country Churchyard Introduction It is finally here! cricpy, the python avatar , ...

In my previous post, I showed how to use cdata package along with ggplot2‘s faceting facility to compactly plot two related graphs from the same data. This got me thinking: can I use cdata to produce a ggplot2 version of a scatterplot matrix, or pairs plot? A pairs plot ...

In the 1980s I spent my time writing code on my 8-bit ZX81 and Atari computers. I learnt everything I know about programming from copying and modifying printed code listings from books with computer games. The games in these books are mostly simple text-based games, but the authors gave them ...

I recently tried out Data Camp’s project called “Phyllotaxis: Draw flowers using mathematics”. Now I’m hooked on drawing spirals using golden angle. Also the mathematical art on instructor’s blog, Fronkostin is just amazing! Separately on twitter, I’ve gotten message on art with prime number, and that ...

What’s a Lectionary? A lectionary, according to Wikipedia, is a listing of scripture readings for Christian or Judaic worship on a given day. The Roman Catholic Lectionary will contain a list of readings for a specific day that are on a 3-year cyc...

For the last months, ThinkR has been involved (with Mango, Procogia and the Linux Foundation) in a working group for an RConsortium R Certification.  Why this Working Group (WG)? No doubt the demand for R (and for Data Science) has been increasing over the past few years — Data Scientist became ...

It is a relatively rare event, and cause for celebration, when CRAN gets a new Task View. This week the r-miss-tastic team: Julie Josse, Nicholas Tierney and Nathalie Vialaneix launched the Missing Data Task View. Even though I did some research on R packages for a post on missing values ...