create a class that loads a simulink model and changes parameters like solver type and simulation time in matlab

Here is an example of how to create a MATLAB class that loads a Simulink model and changes its parameters including solver type and simulation time:

classdef SimulinkModelLoader
    properties
        Model   % the name of the Simulink model
        Parameters  % a structure of parameters to change
    end
    
    methods
        function obj = SimulinkModelLoader(model, varargin)
            % constructor to initialize class properties
            obj.Model = model;
            obj.Parameters = struct(varargin{:});
            obj.load_model();
        end
        
        function load_model(obj)
            % load the Simulink model into memory
            load_system(obj.Model);
            
            % loop over the parameters to change
            fields = fieldnames(obj.Parameters);
            for i = 1:numel(fields)
                % use the set_param function to change each parameter
                set_param(obj.Model, fields{i}, num2str(obj.Parameters.(fields{i})));
            end
        end
        
        function [time, signals] = run_model(obj)
            % run the Simulink model and store the simulation results
            sim_time = get_param(obj.Model, 'StopTime');
            [time, signals] = sim(obj.Model, [0, sim_time]);
        end
    end
end
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To use this class, you can first create an instance by passing the name of the Simulink model and any parameters you want to change:

% create a model loader instance for the 'my_model' Simulink model
loader = SimulinkModelLoader('my_model', 'SolverType', 'ode23', 'StopTime', 10);
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Then you can run the model and store the simulation results:

% run the model and store the simulation results
[time, signals] = loader.run_model();
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Note that this is just an example and may need to be modified to fit the specific needs of your application.

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