Hi Marco,
It is my understanding that you are facing difficulty in changing the colors of the curves in an interaction plot. Here is a sample code for the same:
% Sample data for interactionplot
rng default; % For reproducibility
y = randn(1000,1);
group = ceil(3*rand(1000,4));
y = interactionplot(y,group,'varnames',{'A','B','C','D'})
% Change the curve color
y.Children(3).Children(1).Color = [0 0 0]
Here the variable y contains a property ‘children’ through which you can access any of the axes in the interaction plot. Use the second ‘children’ property to access the line/curve. Lastly use the ‘Color’ property to set the desired color.
Best Regards,
Abhishek Chakram
