Data Store Memory to Global Workspace

Hello,

I am using a function that reads some values from a data storage memeory and writes back to data storage memory. What I want to do is writing one of these data to global workspace so that amplitude of the voltage source can be change. How can I do that?

Thanks.

Answer 1

[BhaTTa]

To write data to the MATLAB global workspace from within a function, you can use the assignin function. This function allows you to assign a value to a variable in a workspace different from the one currently executing. In your case, you want to assign a value to a variable in the base (global) workspace, which is the workspace you interact with at the MATLAB command prompt or in scripts.

Here's a basic outline of how you can use assignin to achieve this:

Step 1: Define Your Function

Suppose you have a function that reads some values and you want to update the amplitude of a voltage source based on this data. Inside this function, after processing or reading the necessary value, you would use assignin to write this value to the global workspace.

function myFunction()
    % Example of reading a value
    amplitudeValue = 5; % Assume this is the value you read and want to write to the global workspace
    
    % Write the value to a variable in the global workspace
    assignin('base', 'voltageAmplitude', amplitudeValue);
end

In this example, voltageAmplitude is the name of the variable that will be created (or overwritten if it already exists) in the global workspace with the value of amplitudeValue.

Step 2: Call Your Function

You simply call your function from the command window, a script, or another function. When it executes, it will create (or update) the voltageAmplitude variable in the global workspace.

myFunction();

Step 3: Access the Variable

Now, you can access voltageAmplitude directly from the command window or any script/function that operates in the global workspace.

disp(voltageAmplitude);