Blog Archives

MCHT, Closures, and R Environments: Making MCHTest Objects Self-Contained

October 15, 2018
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MCHT, Closures, and R Environments: Making MCHTest Objects Self-Contained

Introduction Last week I announced the first release of MCHT, an R package that facilitates bootstrap and Monte Carlo hypothesis testing. In this article, I will elaborate on some important technical details about making MCHTest objects, explaining in the process how closures and R environments work. To recap, last week I made a basic MCHTest-class…Read more MCHT, Closures, and...

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Announcing MCHT: An R Package for Bootstrap and Monte Carlo Hypothesis Testing

October 8, 2018
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Announcing MCHT: An R Package for Bootstrap and Monte Carlo Hypothesis Testing

MCHT is an R package for bootstrap and Monte Carlo hypothesis testing currently available on GitHub.

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Naïve Numerical Sums in R

September 10, 2018
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Naïve Numerical Sums in R

Introduction The Kolmogorov distribution (which I call ) is as follows: There is no known simpler form and we have to work with this sum as it is. This is an infinite sum. How can we compute the value of this infinite sum numerically? Naïvely we can do the following: In other words, sum up…Read more Naïve Numerical Sums...

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Materials for Teaching Applied Statistics

August 20, 2018
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Materials for Teaching Applied Statistics

Today is the first day of the new academic year at the University of Utah. This semester I am teaching MATH 3070: Applied Statistics I, the fourth time I've taught this course.

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Evaluating Olive McBride with the Arkham Horror LCG Chaos Bag Simulator in R

August 13, 2018
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Evaluating Olive McBride with the Arkham Horror LCG Chaos Bag Simulator in R

I love Arkham Horror; The Card Game. I love it more than I really should;it's ridiculously fun. It's a cooperative card game where you build a deck representing a character in the Cthulhu mythos universe, and with that deck you play scenarios in a narrative campaign where you grapple with the horrors of the mythos. Your actions in (and...

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Time to Accept It: publishing in the Journal of Statistical Software

August 5, 2018
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Time to Accept It: publishing in the Journal of Statistical Software

Originally posted on The Geokook.: When I was considering submitting my paper on psd to J. Stat. Soft. (JSS), I kept noticing that the time from “Submitted” to “Accepted” was nearly two years in many cases.  I ultimately decided that was much too long of a review process, no matter what the impact factor might be (and in two…

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How Should I Organize My R Research Projects?

August 2, 2018
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While I understand the languages I need well enough, I don't know much about programming best practices. This goes from function naming to code organization, along with all the tools others created to manage projects (git, make, ctabs, etc.). For short scripts and blog posts, this is fine. Even for a research paper where you're using tools rather than...

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A Recession Before 2020 Is Likely; On the Distribution of Time Between Recessions

April 19, 2018
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A Recession Before 2020 Is Likely; On the Distribution of Time Between Recessions

I recently saw a Reddit thread in r/PoliticalDiscussion asking the question “If the economy is still booming 2020, how should the Democratic address this?” This gets to an issue that’s been on my mind since at least 2016, maybe even 2014: when will the current period of economic growth end? For some context, the Great…Read more A Recession Before...

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R Function for Simulating Gaussian Processes

January 26, 2018
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R Function for Simulating Gaussian Processes

I wrote a quick function for simulating a Gaussian process given only its kernel function and used it to simulate processes with different kernels and very different properties.

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Problems In Estimating GARCH Parameters in R

November 2, 2017
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Problems In Estimating GARCH Parameters in R

In this post I detail problems that emerge when trying to estimate the parameters of GARCH models.

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