I am using Simulink to obtain results and plot them in MATLAB. The transfer function is made in MATLAB and then I used and LTI block to assign the tf in the block. I used to workspace blocks to receive my output back in MATLAB. For some reason when I run the program, I can see my output variables in my workspace. I can use the command office to see the values but when I try to plot my results or use them in MATLAB EDITOR the results disappear, and I need to run the Simulink program again. I have the MATLAB R2020b version. The error that come out is *Unrecognized function or variable "name of variable" *
Please can someone help me because I need to do multiple plots for different step inputs and till now, I copy the values of every variable and use them with excel to create my graphs.