How to select the desired color of the point in stat_summa​ry('geom',​{'point'}) in the Gramm Toolbox?

Hi. I am making a violin plot with a box plot inside, using the Gramm toolbox. I would like to also show the mean, but I do not know how to color it (say red or black).

To plot the mean, I am using the method g.stat_summary('geom',{'point'}). It seems like it produces the desired line, but it has the same color as the rest of the graph. I was wondering if anyone knows how to change that so that to make it clearly visible.

Here's some data:

load carbig.mat
cars.Cylinders = Cylinders;
cars.Origin_Region = cellstr(Origin);
cars.Horsepower = Horsepower;

Here's the code I am using for the graph:

g=gramm('x',cars.Origin_Region,'y',cars.Horsepower);
g.set_names('x','Origin','y','Horsepower');
g.stat_violin('normalization','width','fill','transparent','width',0.8,'half',false);
g.stat_boxplot('width',0.15); 
g.set_title('Violin Plot');
g.stat_summary('geom',{'point'}); %<- adds the MEAN to the graph
g.set_color_options('map', [0.1922, 0.5098, 0.7412]);
g.coord_flip(); 
figure;
g.draw();

Here's the official Toolbox page:

https://www.mathworks.com/matlabcentral/fileexchange/54465-gramm-complete-data-visualization-toolbox-ggplot2-r-like

Thanks

Answer 1

[Haris K.]

With a little bit of searching through the created structure, I have found one solution.

g.results.stat_summary.point_handle.MarkerEdgeColor='red';
g.results.stat_summary.point_handle.Marker='x';