While waiting for the winds of winter to arrive, there is plenty of time to revisit the 5 books. One of my favourite aspects of the series is the character and world building. As the song of ice and fire universe is so big, many characters are mentioned in passing while ...

There are several different methods for sorting data in R. The best method depends on on the type of data structure you have. In R, you...

I’ve previously crunched times for local Half and Full Marathons here on quantixed. Last weekend was the Kenilworth Half Marathon (2018) over a new course. I thought I’d have a look at the distributions of times and paces of the runners. The times are available here. If the Time ...

Attention conservation notice: Unless you are interested in R-related detail, skip this post and read the next post instead. The Data Source It’s primary season and recently I learned about a somewhat strange site that collects a lot of voter registration data. It includes birth date and the full ...

Attention conservation notice: Unless you are interested in R-related detail, skip this post and read the next post instead. The Data Source It’s primary season and recently I learned about a somewhat strange site that collects a lot of voter registration data. It includes birth date and the full ...

Another Riddler Classic Simulation + Animation two math puzzles to end your week right: https://t.co/DxDm2arvpB pic.twitter.com/ki8KnQyC5Z— Oliver Roeder (@ollie) September 7, 2018 This week’s FiveThirtyEight Riddler Classic presented another opportunity to simulate repeated sampling and visualize the results. In this instance we needed ...

At the beginning of this year, I wrote a blog post about how to get started with the stm and tidytext packages for topic modeling. I have been doing more topic modeling in various projects, so I wanted to share some workflows I have found useful for training many topic ...

After a multivariate test, it is often desired to know more about the specific groups to find out if they are significantly different or similar. This step after analysis is referred to as 'post-hoc analysis' and is a major step in hypothesis testing. One common and popular method of post-hoc ...

In the last post of this series of the STATWORX Blog, we explored ggplot2's themes, which control the display of all non-data components of a plot. Ggplot comes with several inbuilt themes that can be easily applied to any plot. However, one can tweak these out-of-the-box styles using the ...

Data sets of all kinds may contain data stored as text which needs to be processed before it can be useful. Often, the first step...

This is the third part of my blog series on fitting the 4-parameter Wiener model with brms. The first part discussed how to set up the data and model. The second part was concerned with (mostly graphical) model diagnostics and the assessment of the adequacy (i.e., the fit) of ...