Undefined function 'abs' for input arguments of type 'cell'.

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Daniel McCully
Daniel McCully 2019-11-18
评论： Daniel McCully 2019-11-20
function c = test(A)
r=abs(A(2,2));
disp(r);
end
I'm trying to take the absolute value of a specific cell but i get this error.
Undefined function 'abs' for input arguments of type 'cell'.
Error in test (line 2)
r=abs(A(2,2));
What is going on that I can't see?
A is also a matrix with dimensions of at least 2x2.

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采纳的回答

Erivelton Gualter
Erivelton Gualter 2019-11-18
It is saying A is a cell type. In order to check it, run the following code:
class(A)
If this is the case, the following should work:
function c = test(A)
r=abs([A{2,2}]);
disp(r);
end
  1 个评论
Daniel McCully
Daniel McCully 2019-11-20
Yah I did not realize there was a difference between { } and [ ] when inputting matrices. So my code was correct I was just inputting values wrong.

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