Collinearity and stepwise VIF selection
Collinearity, or excessive correlation among explanatory variables, can complicate or prevent the identification of an optimal set of explanatory variables for a statistical model. For…
View More Collinearity and stepwise VIF selectionHow To Connect To Your Droplet with SS
How To Connect To Your Droplet with SSH This tutorial is part 1 of 3 in the series: New CentOS 7 Server Checklist This tutorial…
View More How To Connect To Your Droplet with SSAdditional Recommended Steps for New Ubuntu 14.04 Servers
Introduction After setting up the bare minimum configuration for a new server, there are some additional steps that are highly recommended in most cases. In…
View More Additional Recommended Steps for New Ubuntu 14.04 ServersInitial Server Setup with Ubuntu 14.04
ntroduction When you first create a new server, there are a few configuration steps that you should take early on as part of the basic…
View More Initial Server Setup with Ubuntu 14.04Tired of using Helvetica in your R graphics? Here’s how to use the fonts you like
Although R has vast graphical functionality I’ve lamented the lack of support for additional fonts. You can spend an incredible amount of time fine-tuning a…
View More Tired of using Helvetica in your R graphics? Here’s how to use the fonts you likeAdd a before-after map slider to a Leaflet map!
The jQuery Before/After plugin is a great interactive tool to explore changes through time. This plugin has been used to great effect by the New…
View More Add a before-after map slider to a Leaflet map!Slidify Get Started
You can install Slidify, write a three page slide deck and publish it to Github, all in less than 5 minutes! Step Description Code 0…
View More Slidify Get StartedUse the amazing D3 library to animate a path on a Leaflet map
Introduction: Animate a path with D3 Viewing location data that varies through time on a static map is fun, but viewing it on an animated…
View More Use the amazing D3 library to animate a path on a Leaflet mapCreating elegant HTML presentations that feature R code (using slidify )
We recently overhauled our R workshop to improve the flow and add a little style. For several years we created workshop slides using Sweave, LaTeX…
View More Creating elegant HTML presentations that feature R code (using slidify )Extracting tabular data from a PDF: An example using Python and regular expressions
It is not uncommon for us to need to extract text from a PDF. For small PDFs with minimal data or text it’s fairly straightforward…
View More Extracting tabular data from a PDF: An example using Python and regular expressions