[R] e1071::svm train model based on balanced accuracy

[sabmue]

Hey
For classification I use the svm from package e1071.
Since I have unbalanced data sets I would like to train the model based on
balanced accuracy not on just accuracy. I couldn't find an option in the svm
function to do so. 

Does anyone know if it is possible to tell the svm which kind of scoring
function to use for model training?

Would be glad for any help! Thanks!
Best, 
Sabine



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