boxplotGroup

Group boxplots together along the x-axis with space between groups.

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x = {rand(100,2), rand(20, 2), rand(150,2)};
boxplotGroup(x)

The lines above will create two groups of three boxplot boxes per group, with space separating the groups. You can control the amount of space between groups and you can add group labels.

See the example file for a variety of formatting options available. Most boxplot properties available in Matlab can be specified in this function, too. However, if you're working with boxplot's grouping variable 'g', use the syntax boxplot(x,g) along with the "Group Appearance" options described in Matlab's boxplot() documentation.

** Version 2.0**
As requested by several users, now you can set the color of boxplots by group or by members within each group (see example file).

Tested in Matlab r2016a, r2018b, and r2021a.

Cite As

Adam Danz (2026). boxplotGroup (https://uk.mathworks.com/matlabcentral/fileexchange/74437-boxplotgroup), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
2.0.0

Examples file added; GroupType param added to control color distribution; output suppressed unless requested; improved linking of axes with SecondaryLabels; now xticks are set to auto if labels aren't provided; + other improvements.

1.2.2

Instead of creating a new axis when an axis handle is not provided, the current axis will be used via gca().

1.2.1

Suppress linkprops() and changes to toolbar suppression to work with versions prior to r2018b.

1.2.0

When 2nd axis is added, main axis is set to current axis.

1.1.0

Using linkprop and listener to resize axis2 when main axis is resized; axis handle provided in boxplot(); added DeleteFct to main axis; removed toolbar for axis2; other minor changes.

1.0.0