How can I change the default settings for the 'linewidth' property before I plot a figure in MATLAB?

I would like to change the 'LineWidth' property for all my figures by default for my current session of MATLAB.

Answer 1

[MathWorks Support Team]

You can set the default MATLAB linewidth property by setting the 'DefaultLineLineWidth' property of the root graphics object. When new lines are created, they will inherit this property from the root object.

 

set(0, 'DefaultLineLineWidth', 2);

For more information on setting default properties consult,

https://www.mathworks.com/help/matlab/creating_plots/default-property-values.html

[Steven Lord]

stairs returns a different type of graphics object than line. It creates a Stair object not a Line object.

figure
stairs(1:10, 1:10);
title('Before change')

% set(groot, 'DefaultStairLineWidth', 2)
objectType = 'Stair';
propertyName = 'LineWidth';
set(groot, ['Default', objectType, propertyName], 2)

figure
stairs(1:10, 1:10);
title('After change')