How to gather data from a table with variables?

While coding a calculator app, i stumbled with a problem. One of the variables (let's call it A) is a result from an equation, and after that it is checked if the variable is higher than another variable (let's call it B). If A is lower than B, then A can be used for another equation, but if A is higher than B, then i have to check for a table, with three more variables (let's call it X, Y and Z), and the result on the table must be used in the same said equation. The variables X, Y and Z are gathered from equations, edit fields, or button group, so there's the big problem. In order to know wich number of the table i will use for the next equation, the table itself has to check for different variables. I'm currently using only 2 callbacks in the same function, here is an example of what my problem is.

Example:

X will be written at an edit field.

Y is a result of an equation that uses another equations results, but to simplify the exaxple i just used a simple one.

Z is a gathered from a Button Group, it is used for giving C a value, and also as a parameter on the table, so i need the table to aknowledge what button was pushed at the group (Z1 or Z2).

So as i said, A has to be lower than B, or else A will be selected in the table, following the right parameters.

% Callback function: CalculateButton, ZButtonGroup
        function CalculateButtonPushed(app, event)
% Z button group
            if app.Z1Button.Value
                C=1;
            elseif app.Z2Button.Value
                C=2;
            end

B=C*10;
d=app.dEditField.Value;
E=app.EEditField.Value;
X=app.EEditField.Value;
Y=d*X;
A=d*E;
if A<=B
    R=A*100;
elseif A>B
    R=app.UITable(?)*100
end

note: i don't know how to make a code that gather all information i gave, and auto select the right number from the table.

note2: i will probably have to input that table data into codes aswell, so if that's the case, i accept some enlightment on how to set the table.

Answer 1

[dpb]

Have the button callback set an application variable when the user selects it; then use that value in the calculate callback function. Then use an expression to compute the proper column in the table by values of the Z and X flag variables.

s=sprintf('X Z ix\n');
for X1=1:2
  for Z=1:2
    app.Z=Z;
    ixCol=2*(X1>1)+(app.Z>1)+2;     % table column lookup (+2 is offset for one-based indexing plus LH column)
    s=[s;sprintf('%d %d  %d\n',X1,app.Z,ixCol)];
  end
end
fprintf('%s',s.')

X Z ix
1 1  1
1 2  2
2 1  3
2 2  4

[Augusto]

thanks!

[dpb]

ADDENDUM:

NOTA BENE: the "+1" above needs to be "+2" -- one to account for one-based indexing in MATLAB arrays plus one for the LH row ID column in the table.