Passing the Value as Argument but not getting it in the function file

Hey.

I am passing value from loop.but don't recieve in the function file

Main:

for i=1 : size(Img_Out,1)
     for j=1: size(Img_Out,2)
         [iNew,jNew] = applyTransformation(i,j,Inverse_Of_Transformation_Matrix);
end
end

Function File:

function [iNew,jNew] = applyTransformation(xo,yo,Inverse_Of_Transformation_Matrix)
Old_Coordinates(1,1) = xo;
Old_Coordinates(2,1) = yo
end

When i output the value of xo i get "Undefined function or variable 'xo'." .Same is the case with other arguments. Please help

[Stephen23]

function [iNew,jNew] = applyTransformation(...)
%         ^^^^ ^^^^ these are undefined in your function -> error

[Walter Roberson]

When i output the value of xo

Where are you trying to do that output?

Answer 1

[Fangjun Jiang]

In your function, you need to assign or return iNew,jNew

[Abad Ch]

still not getting the values @Fangjun jiang

[Fangjun Jiang]

where do you "output the value of xo"? I don't see it. Show the compete error message. It tells the error line.

[Abad Ch]

I am checking for the values in Command Windows. @Fangjun Jiang

[Walter Roberson]

Variables defined inside a function disappear as soon as the function returns. You would need to put a breakpoint inside the function and examine the variables while stopped at the breakpoint.

[Abad Ch]

Thanks @Walter Robersin . Now i am getting the values. I'll debug now.