Repeated measures ANOVA with R (tutorials)

April 13, 2010 | Tal Galili

Repeated measures ANOVA is a common task for the data analyst. There are (at least) two ways of performing “repeated measures ANOVA” using R but none is really trivial, and each way has it’s own complication/pitfalls (explanation/solution to which I was usually able to find through searching ... [Read more...]

Two-way Analysis of Variance (ANOVA)

February 15, 2010 | Ralph

The analysis of variance (ANOVA) model can be extended from making a comparison between multiple groups to take into account additional factors in an experiment. The simplest extension is from one-way to two-way ANOVA where a second factor is included in the model as well as a potential interaction between ...
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One-way ANOVA (cont.)

February 12, 2010 | Ralph

In a previous post we considered using R to fit one-way ANOVA models to data. In this post we consider a few additional ways that we can look at the analysis. In the analysis we made use of the linear model function lm and the analysis could be conducted using ...
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