Error in Creating KNN classifier with explicit ClassNames

[ruchikasonagote]

I encountered an error while attempting to create a K-Nearest Neighbor classifier using the Iris dataset. The error message indicates a problem with the 'N' parameter, specifically:

Code Snippet:

load fisheriris
X = meas;
Y = species;
ClassNames = {'setosa', 'versicolor', 'virginica'};
Mdl = fitcknn (X, Y, 'ClassNames', ClassNames);

Expected Behavior: The fitcknn function should create a KNN classifier object.

[dasergatskov]

I do not understand what the code does, but ac = find (gnY, ClassNames{i}) looks wrong, perhaps it should be ac = find (strcmp(gnY, ClassNames{i})) ?

[pr0m1th3as]

Thanks @dasergatskov for pointing this out. I included the above code snippet as a unit test.