While so-called “between-subjects” ANOVA is absolutely straightforward in R, performing repeated measures (within-subjects) ANOVA is not so obvious. I have come across at least three different ways of performing repeated measures ANOVA in R. Which method you use depends on … Continue reading → [Read more...]

I found some useful websites showing examples of how to use R for various sorts of ANOVA (between, within, mixed designs, etc): Using R for Psychological Research Quick-R for SAS/SPSS/Stata users enjoy [Read more...]

I came across a useful post showing how to generate error bars on plots in R Note that for bar plots with error bars, you can use the function barplot2 which is associated with the gplots package (click [ here … Continue reading → [Read more...]

There’s an article in the New York Times about R: [ click here ] An excerpt from the article: To some people R is just the 18th letter of the alphabet. To others, it’s the rating on racy movies, a … Continue reading → [Read more...]

This coming winter term (Jan-Apr, 2009) I will be teaching my graduate seminar in the Graduate Program in Neuroscience, Statistics for Neuroscience (Neuroscience 9506b). The course webpage can be found [ here ]. I will be doing two things differently this … Continue reading → [Read more...]