What is The default kernel in fitcsvm(X,Y) function?

hello everyone,

i read matlab documentation of fitcsvm but i coundn't find what is the defualt value of the kernal function if i used fitcsvm(X,Y)

https://www.mathworks.com/help/stats/fitcsvm.html

best regards,

Answer 1

[Abhishek Gupta]

Hi,

As per my understanding, you want to know the default value of 'KernelFunction' in the 'fitcsvm()' function. It's as follows:-

1. Gaussian or Radial Basis Function (RBF) kernel, the default for one-class learning
2. Linear kernel, the default for two-class learning

The above information is also present in the documentation. See the table under 'KernelFunction' in 'SVM Options' section.

You can also access the 'KernelFunction' value of your model as follows: -

SVMModel = fitcsvm(x,y);
SVMModel.KernelParameters.Function