MATLAB: Undefined function or variable ‘t_x’. The first assignment to a local variable determines its class.

code errorMATLABsimulinkundefined function or variable

Hi all, I am trying to run this programm through Matlab function in simulink, but am getting following error.
Undefined function or variable 't_x'. The first assignment to a local variable determines its class. Function 'A_star.m' (#258.1132.1135), line 31, column 1: "t_x" Launch diagnostic report.
Component:MATLAB Function | Category:Coder error
Undefined function or variable 't_y'. The first assignment to a local variable determines its class. Function 'A_star.m' (#258.1155.1158), line 32, column 1: "t_y" Launch diagnostic report.
Can anyone help me out.
Thank You.

Best Answer

Try initializing the variable t_x before assigning cur.x to it.
t_x = zeros(len,1);
t_x(t_count)=cur.x;
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