Multiple grouping variables in a boxplot

Dear all,

For my project, I want to group synapse counts by cochlear positon (frequency) and treatment, i.e. five box plots per position, as seen in the example figure.

I have loaded my excel table into matlab which contains three columns: synapses, frequency and treatment. Unfortunately I have not found any help so far. How do I group data by two variables and display it in a boxplot? Is there a way to assign colours to each group? Any help would be highly appreciated! Thank you.

Answer 1

[Cris LaPierre]

The file exchange may have some code that does this. See this post.

As far as what can be done in MATLAB, here's a simple example that groups Weight by 2 variable.

load carbig.mat
boxplot(Weight,{Cylinders,Model_Year},"ColorGroup",Model_Year)