Since Galton’s quincunx has fascinated me since the (early) days when I saw a model of it as a teenager in an industry museum near Birmingham, I jumped on the challenge to build an uneven nail version where the probabilities to end up in one of the boxes were ...

Make a plot of a list of baby name popularity.

When you write code, you’re sure to run into problems from time to time. Debugging is the process of finding errors in your code to figure out why it’s behaving in unexpected ways. This typically involves: Runni...

Hangman is a classic word game in which you need to need to guess as many possible letters in word, so you can guess the word, before running out of tries (lives). Upon running out of tries, you are hanged!…Read more ›

Congratulations to our very own Hadley Wickham, Infrastructure Steering Committee Chairperson, for winning the “Nobel Prize of Statistics.” The award is given to a person under the age of 41,... The post R Consortium Infrastructure Steering Committee Chair Wins 2019 COPSS Presidents’ Award appeared first on R Consortium.

This article comes from Diego Usai, a student in Business Science University. Diego has completed both 101 (Data Science Foundations) and 201 (Advanced Machine Learning & Business Consulting) courses. Diego shows off his progress in this Customer...

Yesterday I was asked to easily plot confidence intervals at ggplot2 chart. Then I came up with this shadowing ggplot2 feature called geom_ribbon(). It’s not a trivial issue as long as you need to gather your data in order to achieve a tidy format. When you already have ...

Two Hundred twenty-three new packages made it to CRAN in October. Here are my “Top 40” picks in ten categories: Computational Methods, Data, Genomics, Machine Learning, Mathematics, Medicine, Pharmacology, Statistics, Utilities, and Visualization. Computational Methods admmDensestSubmatrix v0.1.0: Implements a method to identify the densest sub-matrix in a given or sampled binary ...

I was intrigued by the recent splashy result showing how eigenvectors can be computed from eigenvalues alone. The finding was covered in Quanta magazine and the original paper is pretty easy to understand, even for a non-mathematician. Being a non-mathematician myself, I tend to look for insights and understanding via ...

In this post, we will analyze data from my cell phone provider on my phone usage. The data contain information on my mobile data use, phone calls, and text messages. We will use exploratory data analysis to understand how my phone usage varies across t...

The setup The RStudio notebook is a great interactive tool to build a statistical report. Being able to see statistics and graphs right on the fly probably has saved me countless hours, especially when building complex reports. However, one thing that has always bothered me was the way tables are ...

This is my take on an R style guide. As such, this is going to be a very long post (long enough to warrant a table of content). Still, I hope it - or at least some parts of it - are useful to some people out there. Another guide ...

Practical Data Science with R, 2nd Edition author Dr. Nina Zumel, with a fresh author’s copy of her book!

Back to Working with Statistics Canada Data in R, Part 1.Forward to Working with Statistics Canada Data in R, Part 3. Most CANSIM data can be accessed in two formats: as data tables and, at a much more granular level, as individual data vectors. This post is structured accordingly: Searching for ...