Simulation with an RL Agent does not save simulation data

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Vasu Sharma 2024-8-12

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https://ww2.mathworks.cn/matlabcentral/answers/2144849-simulation-with-an-rl-agent-does-not-save-simulation-data

评论： Sreeram 2024-8-13

I have a reinforcement learning simulink model environment I am training in MATLAB 2023a, which I started porting to MATLAB 2024a. The model runs well in 2023a and saves the simulations done using the sim function. The environment has some signals that I want to save.

For the 2023a they got saved in the SimulationInfo object but that doesnt happen with 2024a. Do I have to activate something additionally in 2024a or is it a bug?

The images below detail the difference between the two versions. The env is a simulink envrionment

simEpisodes = 1;
simOpts = rlSimulationOptions("MaxSteps",1250,...
    "NumSimulations", simEpisodes);
experience = sim(env,agent,simOpts);
save(strcat(results_dir,'/Experience.mat'),"experience")

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Sreeram 2024-8-13

Based on the release notes for the Reinforcement Learning Toolbox, MATLAB R2024a, the behaviour of “SimulationInfo” property has changed, and the property is now a “SimulationStorage” object. You can refer to the relevant part of the release notes here: https://www.mathworks.com/help/reinforcement-learning/release-notes.html#mw_1be71805-298b-471b-a226-e6fd0add2cff

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