[R] BoxPlots, 1 Way ANOVA and Non-Statisticians.

[Carlos J. Gil Bellosta]

Dear R-Helpers,

I am working in a project and I have a number of observations belonging 
to several classes. Using a 1 Way ANOVA, I have rejected the equality of 
means hypothesis with a very small p-value. However, the people I have 
to present my results to are not statisticians and they are not very 
likely to be much impressed by a 1.32434e-12 like number/thing.

Therefore I have decided to make to boxplots, one for the actual data 
and the second one for simulated data where the equality of the means 
holds so that the difference in the distributions can be visually 
appreciated.

The problem is that, for the simulated values, being more regular, the 
range of variation is smaller and, therefore, the heigth of the window 
where their boxplot is drawn is also smaller. As a result, the scales of 
the two boxplots are not the same and part of the appeal of the visual 
approach is lost in the way.

My question is, is there a way to make two different boxplots within a 
"common window"? (Or rather, a common size window or, more concretely, 
so that it spans over the same range on the vertical axis).

Sincerely,

Carlos J. Gil Bellosta
Sigma Consultores Estadi'sticos
http://www.consultoresestadisticos.com