how to pass data to a Table in GUI?

I have a GUI with one input (x) and it returns one numeric output (Y) and matrix (Tab) in a table. The problem is the generated table in the GUI is not updated with every new input (x). Any hints what is the wrong in the code? Note that in the GUI I am defining a table with 5*5 (5 rows and 5 columns)

I used the following code:

 x = str2double(get(handles.input1, 'String'));
 [Y, Tab]= SyX(x);
 set(handles.output1, 'String', Y);
 set(handles.TabOutput, 'data', Tab);

 function [Y, Tab]= SyX(x)
 Y = x+2;
 if x==1
    Tab=[1 2 0 1]
 elseif x==2
    Tab = [1 0];
 elseif x==3
    Tab = [1 2;3 4];
 else
    Tab = [1 0 0;0 1 0; 0 0 1]
 end