find the euclidean distance

     for bd=1:144
                for fd=1:128
            D =(sum((fe(bd,fd)-U(bd,fd)).^2));
            s=sqrt(D);
                end
            end

Undefined operator '-' for input arguments of type 'cell'.

Error in samptest (line 239) D =(sum((fe(bd,fd)-U(bd,fd)).^2));

Answer 1

[Walter Roberson]

              D =(sum((fe{bd,fd}-U(bd,fd)).^2));

[vasantha malairamar]

same error.....

[Jan]

Then U is a cell also?!

Answer 2

[Jan]

The error message is clear: One or two of the arguments of the - operation is a cell, but you cannot perform arithmetic operations with cells.

Use the debugger to find the reason of your problem. Type this in the command window:

dbstop if error

Now run the code and wait until Matlab stops at teh error. Now check the types of the locally used variables:

% D =(sum((fe(bd,fd)-U(bd,fd)).^2))
class(fe)
class(U)

Perhaps walter's suggestion does not work, if if was not fe but U -- well, his idea is still correct and I'd expect you can apply the changes for U by your own.