In my last Statistics Sunday post, I briefly mentioned the concept of regular expressions, also known as regex (though note that in some contexts, these refer to different things -...continue reading.
Category: R Code
First Statistics Sunday in far too long! It’s going to be a short one, but it describes a great trick I learned recently while completing a time study for our...continue reading.
Using Text Analysis to Become a Better WriterWe all have words we love to use, and that we perhaps use too much. As an example: I have a tendency to...continue reading.
This is a a step by step guide to perform topic modelling in R language using JSTOR’s data for research (dfr) and visualize it with drf-browser developed by Andrew Goldstone....continue reading.
IRA Tweet Data You may have heard that two researchers at Clemson University analyzed almost 3 millions tweets from the Internet Research Agency (IRA) – a “Russian troll factory”. In...continue reading.
Highlighting Specific Cases in ggplot2Here’s my belated Statistics Sunday post, using a cool technique I just learned about: gghighlight. This R package works with ggplot2 to highlight a subset of...continue reading.
Using Text Mining on Open Ended ItemsGood survey design is both art and science. You have to think about how people will read and process your questions, and what sorts...continue reading.
Statistics Sunday: Term Frequency and Inverse Document Frequency As a mixed methods researcher, I love working with qualitative data, but I also love the idea of using quantitative methods to...continue reading.
Converting Between Effect Sizes I’m currently working on my promised video on mixed effects meta-analysis, and was planning on covering this particular topic in that video – converting between effect...continue reading.
An R Tutorial: Visual Representation of Complex Multivariate Relationships Using the R ‘qgraph’ Package, Part Two
An R programming tutorial by D.M. Wiig This post is contained in a .pdf document. To access the document click on the green link shown below. qgraphpost3continue reading.
R Tutorial: Visualizing multivariate relationships in Large Datasets A tutorial by D.M. Wiig In two previous blog posts I discussed some techniques for visualizing relationships involving two or three variables...continue reading.
A Tutorial by D. M. Wiig The R programming language has a multitude of packages that can be used to display various types of graph. For a new user looking...continue reading.
An R tutorial by D. M. Wiig This posting contains an embedded Word document. To view the document full screen click on the icon in the lower right hand corner...continue reading.