Vectorized set_param

Set multiple Simulink® systems and block parameters in a single call.

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Are you like me and finding yourself wanting to change the parameters of multiple Simulink objects at once? Do you run find_system only to then take the output and use it in a for loop that calls set_param? Are you tired of your for loop crashing because a block name has a carriage return or an apostrophe? Well if this is you, I have a simple utility that can make life easier.
SET_PARAMS(OBJECTS,'PARAMETER1',VALUE1,'PARAMETER2',VALUE2,...) is a vectorized form of SET_PARAM that works with cellstrs. It sets parameters within OBJECTS to the specified values. This enables the user to change multiple objects in a single call, work directly with output from find_system, and easily work with blocks that contain carriage returns and/or apostrophes.

Examples:
set_params({'model/block1' 'model/subsystem1/block2'},'FontName','Courier New')
will change block1 and block2 to use Courier New as their font

set_params(find_system(bdroot,'BlockType','Scope'),'BackgroundColor','lightBlue')
will set the background color of all Scopes in the current Simulink model to light blue.

Cite As

Will Campbell (2026). Vectorized set_param (https://www.mathworks.com/matlabcentral/fileexchange/26271-vectorized-set_param), MATLAB Central File Exchange. Retrieved .

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General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.2.0.1

Updated license

1.2.0.0

rephrased title

1.1.0.0

Updated copyright for 2010