How can I reuse numerical values them back as inputs?

If I let x=1 in the Command Window, and I run the script:

clc
x=x+1

I would get x=1, then x=2, then x=3, and so on as long as I rerun the script. Is there a way to do this in my script only without having to put x=1 in the Command Window? I'm hope to avoid using functions and function handles if possible.

Thanks in advance! :D

Answer 1

[Sarthak]

Hi,

You can save it to a MAT-file and then load it back in before the script runs. This way, each time the script is run, it will load the current value of x from the MAT-file, increment it, and save it back to the MAT-file for the next run.

Please refer to the following code:

save('x.mat', 'x'); 
clc 
load('x.mat'); 
x = x + 1; 
save('x.mat', 'x'); 

Answer 2

[Jan]

Working with functions is the way to go. You cannot use Matlab efficiently without functions.

But as far as I understand, your problem can be solved with out using a self-written function:

% Script: yourScript.m
if ~exist('x', 'var')
    x = 0;
end
x = x + 1

Starting this script will create x automatically, if it does not exist before. Of course, exist() is a function, but other functions are called also for the operators = and + .