running different matlab scripts from different folders by using one script - matlab

Question

I want to run multiple scripts from different folder by using one script
for example I have the following code:
Original_AddRun1 = 'F:\UPT\Root\Run\S1.m';
Original_AddRun2 = 'F:\UPT\Root\Run2\S2.m';
Original_AddRun3 = 'F:\UPT\Root\Run3\S3.m';
Original_AddRun4 = 'F:\UPT\Root\Run4\Subfolder\S4.m';
run(Original_AddRun1);
run(Original_AddRun2);
run(Original_AddRun3);
run(Original_AddRun4);
there are four scripts that I want to run (S1.m, S2.m, S3.m and S4.m) which are located in the folders (Run, Run2, Run3 and Subfolder inside Run4)
the above Matlab is created inside the "Root" folder that have all the folders
however when i run the code the following error happens
Undefined function or variable 'Original_AddRun2'.
Error in AllRun (line 7)
run(Original_AddRun2);
the first script runs and I get the figure plot I want but the it stops when it tries to run the second script, each individual script works perfectly and were tested before
keep in mind that S2.m needs the variables generated by S1.m to work and the same with S3.m that needs S2.m's generated variables and S4.m needs S3.m's generated variables... this is why those script needs to run in order and Function cannot be used because it uses it's own workspace and not the general workspace
I used save() to save the general workspace at the end of each script then clear the general workspace to be able to run the next script then used load()
in that script to load the variables I need to the general workspace again to use them
I feel there is a much simpler way to do it that the roundabout way save() and load()

Answer 1

I think it is easier to avoid clear as much as possible. It should only be used at the top of a main script. The solution is to use a function workspace (by creating a function) instead of the global workspace. In this way we avoid cluttering the global workspace.
main.m:
clear all
Original_AddRun1 = 'F:\UPT\Root\Run\S1.m';
Original_AddRun2 = 'F:\UPT\Root\Run2\S2.m';
Original_AddRun3 = 'F:\UPT\Root\Run3\S3.m';
Original_AddRun4 = 'F:\UPT\Root\Run4\Subfolder\S4.m';
run(Original_AddRun1);
run(Original_AddRun2);
run(Original_AddRun3);
run(Original_AddRun4);
F:\UPT\Root\Run\S1.m:
function S1()
... % global variables (ex. Original_AddRun1) are not defined here
... % newly defined variables are not added to global scope
end

Answer 2

I found that when you run a .m script from another .m script you have to clear the workspace before running another .m script in the same process.
Since each script depends on the variables of the previous script in the question that is not directly possible. To avoid this issue and still achieve the objective it is possible to use the save() function to save the workspace, then clear it to run the next script, and then load it again with load().
A bit roundabout way of doing it but it works.