how i can use confusion_matrix for result of image classification using knn?

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youb mr
youb mr 2019-11-17
回答： Ridwan Alam 2019-11-20
Hello everyone.
I'm trying to classify an images containing two classes using a Knn classifer.
and would like to evaluate the performance using its confusion matrix. But how can I use it with the KNN classifier?
This is my code of KNN classifer
model=ClassificationKNN.fit(X,Y,'NumNeighbors',9);
[~,result1]=predict(model,x);
how i can use confusion_matrix in this situation

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回答（1 个）

Ridwan Alam
Ridwan Alam 2019-11-20
yhat = predict(model,x);
C = confusionmat(y,yhat)

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