MATLAB: I have a scatterplot where the points are colored by group number. How to add a legend with the group color attached

scatter color legend

I have a scatter plot with each point colored by it's cluster number (ranging from 1 to 5) and I'm trying to add a legend that will indicate which color belongs to which group.

scatter(Data.X, Data.Y, Data.ClusterNumber); legend(strcat('Group: ', num2str(transpose(1:5))))

The above gets me the scatter plot and legend, but there is only a single dot for all 5 clusters.

Best Answer

If you have the Statistics and Machine Learning Toolbox, it is probably easier to use the gscatter (link) function.

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MATLAB: Compare the Means between individual groups in anova

See if the multcompare (link) function will do what you want.

MATLAB: Scatterplot

You have to dig down a couple of layers to find the data:

h = scatterplot(rand(20,2));
h = get(h,'Children');
h = get(h,'Children');
x = get(h,'xdata');
y = get(h,'ydata');

Best Answer

Related Solutions

MATLAB: Compare the Means between individual groups in anova

MATLAB: Scatterplot

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