svm rbf kernel parameter?

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nadia naji
nadia naji le 30 Déc 2012
hi what is the default value of sigma in RBF kernel function in svmtrain and where or how can i see the value of it? is it different from scaling factor? for example i have a feature vector with 3 feature when i see the scaling factor it have 3 value i don't know we have only one value for sigma or for every feature in feature vector exist one sigma? can you help me? please ask my question.

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nadia naji
nadia naji le 30 Déc 2012
i understand the default value of sigma is 1 and it is different from scaling factor

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