Unrecognized function or variable 'scope'. error in matlab script

I run a simulink file that tunes pid controllers to obtain their optimal gains.

The simulation will go on for 20 seconds and I need to extract the time in variable "tout" which is taken from "Tmodel"

the following lines are responsible for my task:

set_param('AGC_2_Simulink_RLC1_10may25c','Solver','ODE113')
sim('AGC_2_Simulink_RLC1_10may25c', Tmodel);
tout = scope(:,1);

but I get this error: "Unrecognized function or variable 'scope'." for the last line.

Kindly I need help

Answer 1

[Walter Roberson]

The model probably has "single simulation output" configured for it; https://www.mathworks.com/help/simulink/slref/simulink.simulationoutput.html