Why does my matrix looks empty when it's not?

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Hello, I'm trying to code an UItable where the user is free to add and delete as many rows as they want to. I need the data entered by the user to do some calculus but when I use the get function and then transfer that to a matrix, it runs ok but shows an empty matrix M.
Ps. My add and delete row work just fine, the problem is somewhere else
%I called "tabla" as a global because the code above is in a
%startupFCN button
global tabla
datos = get(tabla, 'Data');
M= cell2mat(datos);

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Walter Roberson
Walter Roberson il 11 Mar 2023
When you global a variable after assigning a local value to the variable in the same workspace, then the local value is removed and the current global value replaces it.
global tabla
is like clear tabla right before the global tabla -- unless, that is, tabla was already global in the workspace.
Furthermore, you get(tabla, 'Data') but is tabla a UITable ? Or is it a cell array of character vectors like you assigned in your code?
Your code appears to be confusing the contents of the UITable and the handle of the UITable.
  5 Commenti
Walter Roberson
Walter Roberson il 12 Mar 2023
function calculateButtonPushed(app, event)
datos = app.UITable.Data;
M = cell2mat(datos);

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