How to use a variavle calculate by a code to another code?

Hi all,

I hope that everyone is doing well.

I have a code this code calculate the value of a variable y.

I would like to export y only to another code and I do not wana use sub function because both codes are long and I may used several same characters at different stage.

Thanks and regards

[Stephen23]

The simple, efficient, and most robust way to pass data between function workspaces is to pass input/output arguments:

https://www.mathworks.com/help/matlab/matlab_prog/share-data-between-workspaces.html

Answer 1

[Max Heimann]

Im not sure i get your point about long code and reused variables. Its also a bit unclear what kind of code we are talking about.

Do you have 2 scripts script_A and script_B and want to calculate variable y in sript_A and then use it in script_B? In that case script_A will write y into the matlab base-workspace where it will be available to any code that is run after it, including script_B.

script_A

y = rand;

script_B

z = y;

Now you could type in the console:

>>script_A
>>script_B

In case we are talking about functions (which do not have direct access to the base-workspace) you could define y as a function return value.

function y = function_A
    y = rand
end

And now you can use y in another script with

z = function_A;

Answer 2

[Mohammed Lamine Mekhalfia]

@Max Heimann

Thank you a lot, it is exactly what I am looking for.

but what I want to do is to clear all the variable in script A except for y that I will use it later in script b.

I meant by long is that I used a lot of abreviation for variables and I repeated it in scrtipt B this is why I wanna clear all except for y.

[Max Heimann]

In that case i would suggest you simply turn script_A into a function and only return the variables you need. Functions have a seperate workspace from the base workspace and you wont have to clear those variables manually once the function is finished.