Saving the outputs of multiple runs of a script

I have a stochastic simulation which I would like to run multiple times while changing a variable called 'correlation'.

For each run I would like to save the outputs as individual matrices so I can plot them together and compare values.

How would I go about saving the outputs of each simulation for each corresponding value of correlation?

I tried incorporating this into a 'for' statement but I'm very new to MATLAB and get the error "Array indices must be positive integers or logical values."

My code so far is:

R01= zeros(length(t),maxit);

R02= zeros(length(t),maxit);

R03= zeros(length(t),maxit);

R04= zeros(length(t),maxit);

R05= zeros(length(t),maxit);

R06= zeros(length(t),maxit);

R07= zeros(length(t),maxit);

R08= zeros(length(t),maxit);

R09= zeros(length(t),maxit);

for correlation=(0.1:0.1:0.9)

run stochasticsimulation.m

ResultsR01(:,correlation)= R01;

ResultsR02(:,correlation)= R02;

ResultsR03(:,correlation)= R03;

ResultsR04(:,correlation)= R04;

ResultsR05(:,correlation)= R05;

ResultsR06(:,correlation)= R06;

ResultsR07(:,correlation)= R07;

ResultsR08(:,correlation)= R08;

ResultsR09(:,correlation)= R09;

end

Could you please advise on either where to look to learn this stuff or what improvements I can make to my code.

Thanks!

Answer 1

[VBBV]

%if 
Count = 0.1:0.1:0.9;
for correlation=1:length(Count)

Change this line in for loop and run it.

[Rohan Soni]

Thank you for your submission! I tried doing this but then received an error saying that the indices of left side not compatible with size of right side?

Not sure why this is happening but I feel like it may be to do with the way the script I'm calling is outputting results.

[Rik]

@VBBV You should avoid using length. It is never the best choice. Either use numel or size with a dimension.

Answer 2

[Rik]

You should not be using a script outside of debugging. If you're only interested in the value of a single variable, you should make your script a function with that variable as the output. Then you can run it in a loop.

You should also note that indices in an array must be positive integers:

my_array(0.1) % this is an invalid syntax
my_array(1) % this is a valid syntax

You should also avoid numbering your variables, use indexing instead. If you only store a single value:

%change this
R01=my_function;
R02=my_function;
R03=my_function;
%to this:
R(1)=my_function;
R(2)=my_function;
R(3)=my_function;