Convertion to double from struct is not possible

Hello! I am trying to do two things, but the ideia it's the same. In the first case (image 1) I want to save app.input_signal in a matrix. For example, if my app.checkBoxValue == 1, I want that all the elements of the matrix have the same app.input_signal. But the app.input_signal is a .mat file with 2 fields. I don't know how to do it.

In the second case (image 2), I want to do exactly the same thing, but the app.input_dpd is the field x of the app.input_signal after passing some function.

I have to different errors. Can you help me please?

Answer 1

[Image Analyst]

How about getting rid of the double for loop and just do it vectorized

[rows, columns] = size(app.input_signal_array)
% Copy the x field all the way down the array for each and every row.
app.input_signal_array = repmat(app.input_signal.x, [rows, 1]);

[Bárbara Matos]

Thank you! I will try this :)