Categorical scatter plot in Matlab

Question

How would you produce in Matlab a categorical scatter plot comparable to this?

Categorical scatter plot in R

The above chart was generated in R, in response to this question.

I'd use subplot... those are really three separate plots. Alternatively, you could scale each data sets "x"-values to fit a defined range (I'd choose 1) and then just add a constant to each — Dan

H.Muster H.Muster · Accepted Answer · 2015-06-05T07:56:27

You can use the undocumented jitter property of scatter:

% create example data
ydata = rand(50, 3)*2+2; 

[r, c] = size(ydata);

xdata = repmat(1:c, r, 1);

% for explanation see 
% http://undocumentedmatlab.com/blog/undocumented-scatter-plot-jitter
scatter(xdata(:), ydata(:), 'r.', 'jitter','on', 'jitterAmount', 0.05);

hold on;

plot([xdata(1,:)-0.15; xdata(1,:) + 0.15], repmat(mean(ydata, 1), 2, 1), 'k-')

ylim([0 max(ydata(:)+1)])

This results in:

Example figure

Categorical scatter plot in Matlab

2 Answers