MATLAB: How to find all the base workspace variables of a certain type that are referenced in a model

Question

I want to get a list of all the base workspace variables of a certain type that are referenced in a model. I have tried using "Simulink.findVars", but there is not option to specify the data type or class. How can I get a list of only Simulink.Parameter objects that are referenced by my model?

Answer 1

You can retrieve the entire list of variables using "Simulink.findVars" and then construct another list based on what class of variables you are looking for. See the following example:

allVars = Simulink.findVars(modelName, 'SourceType', 'base workspace');

myVars = Simulink.VariableUsage;

myVars(1) = '';

desiredClass = 'Simulink.Parameter';

for i = 1:length(allVars)

    tmp = evalin('base',allVars(i).Name);

    if strcmp(class(tmp),desiredClass)

        myVars(end+1) = allVars(i);

    end

end

The resulting list of Simulink.Parameter objects will be found in "myVars"