What type of imput argument are valid in Plotconfusion?

Dear all,

I try to create my confusion matrix with the following formula:

plotconfusion(A,B)

I tried it out with categorical and double inputs and outputs but it still give me the following message:

Undefined function 'plotconfusion' for input arguments of type 'categorical'. or Undefined function 'plotconfusion' for input arguments of type 'double'.

What should I do then ?

Thank you very much in advance for your answer.

Pierre

[Pierre Lonfat]

NB: the other similar function

confusionmat(A,B)

with exactly the same inputs and outputs works perfectly well !