How to avoid horizontal shifts after applying GroupByColor on boxcharts?

I'm trying to plot 5 boxcharts with 5 different boxcolors in one figure.

To get different colors im using the GroupByColor function as stated in the documentation.

The application of GroupByColor however leads to a horizontal shift of the boxplots.

How do I have to change my code to avoid the shift of my boxplots?

figure(1)
boxchart(xData,yData,'GroupByColor',xData,'BoxWidth',2)
grid on

'GroupByColor' not applied: correct position, wrong colors

'GroupByColor' applied: wrong position, correct colors

Answer 1

[Adam Danz]

You can create the boxes in a loop,

y = magic(5); 

[nrows, ncols] = size(y);

hold on
for i = 1:ncols
   boxchart(repelem(i,nrows,1),y(:,1))
end

Answer 2

[Cris LaPierre]

Typically, groups of boxplots share the same x value (see here and here). So what is happening is MATLAB is making room for one boxplot for each group at each x tick value, with the entire group centered around the x-tick.

It looks a little different in your plot because you have increased the box width.

I don't know of a way to modify individual boxcharts otherwise, and also don't see a way to change the position of a grouped boxchart.

If color is important, you may have better luck using boxplot. See here: https://www.mathworks.com/matlabcentral/answers/1705595-color-each-boxplot-differently