How do I change the default parameter or variable data type in Simulink?

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MathWorks Support Team
回答： MathWorks Support Team 2022-4-7
When I create a variable in Simulink Model Workspace, the default data type is set to 'double' which does not seem to be editable. How can I change this default data type?

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MathWorks Support Team
There are multiple ways you can change the data type of a Model Workspace variable:
  1. If a MATLAB Variable is being used as in the question, you can directly declare the data type of the variable along with its values as follows:
  2. You can use a Simulink Parameter instead of a MATLAB Variable which allows you to edit the data type interactively. You can then call this variable as a value in a block's parameter in your model.
  3. You can set the data type directly in the Block Parameters window. An example of the Switch block 'Threshold' parameter is shown below:
  4. You can perform (1), (2) and (3) using Model Data Editor too. You can find the Model Data Editor docked at the bottom left corner of your Simulink window by default or open it by navigating to 'Modeling' tab > 'Design' section > clicking on 'Model Data Editor' in the Simulink toolstrip.

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