Posts

How to calculate contrasts from a fitted brms model

Models and contrasts Example data Model Interpreting the model’s parameters hypothesis() More contrasts Directional hypotheses and …

How to analyze visual analog (slider) scale data?

Ratings provided on visual analog scales (VAS), or slider scales, are unlikely to be normally distributed. Nevertheless, researchers …

rpihkal: Combine ggplots with patchwork

patchwork is an R package with a powerful syntax for combining different ggplots into a single figure.

rpihkal: Stop pasting and start gluing

How to use the glue R package to join strings.

Bayesian Estimation of Signal Detection Models, Part 4

(This post is part 4 of a series of blog posts discussing Bayesian estimation of Signal Detection models.) In this blog post, I …

Bayesian Estimation of Signal Detection Models, Part 3

(This post is part 3 in a series of blog posts discussing Bayesian estimation of Signal Detection models.) In this post, we extend the …

Bayesian Estimation of Signal Detection Models, Part 2

This is a part of a series of blog posts discussing Bayesian estimation of Signal Detection models. In this post, I describe how to …

Bayesian Estimation of Signal Detection Models, Part 1

Signal Detection Theory (SDT) is a common framework for modeling memory and perception. Calculating point estimates of equal variance …

Sharing R products

Don't set R's working directory from an R script.

SIPS 2017 Conference Tweets

Exploring SIPS Tweets with R.