Problem It’s annoying to have to type the name of an object I just created in order to print its output in a script. Context A certain lightsaber-wielding stats professor of mine liked to point out that R doesn’t go out of its way to be helpful. If ...

Problem How can I convert a frequency table into proportions? Context This is a continuation of the data manipulation discussed in the ​`​with()` post. I had just finished making a table # Load data from GitHub polygon

1. Global trend lines One of the simplest methods to identify trends is to fit a ordinary least squares regression model to the data. The...

In this post we'll look at the odds of a stock market crash from the view point of valuation. We'll use my favorite valuation measure Shiller P/E or CAPE ratio, which is just like regular P/E except it's calculated by using earnings of the last ten yea...

Recently managed to put up my new package container on CRAN (and finally have a compelling reason to start an R-blog …). This package provides some common container data structures deque, set and dict (resembling Pythons dict type), with typical member functions to insert, delete and access container elements. If you ...

Two awesome things inspired this post: {ggplot2}’s version 3.0 release on CRAN, including full support for the {sf} package and new functions geom_sf() and coord_sf(), which make plotting data from shapefiles very straightforward. Jonas Scholey’s blog post discussing the use of “bubble grid” maps as an alternative ...

Introduction I wanted to do a follow-up on my series of posts about Texas high school University Interscholastic League (UIL) academic competitions to more closely evaluate the relationship between the school performance in those competitions with school-wide SAT) and ACT scores. For those who may not be familiar with these ...

Easy facet labels in ggplot2.

I am happy to announce that our paper is published today in The Lancet. Kashnitsky, I., & Schöley, J. (2018). Regional population structures at a glance. The Lancet, 392(10143), 209–210. https://doi.org/10.1016/S0140-6736(18)31194-2 At a...