[R] Sugeestion about tuning of SVM

Dear list I've a generic question about how to tune an SVM I'm trying to classify with caret package some population data from a case-control study . In each column of my matrix there are the SNP genotypes , in each row there are the individuals. I correctly splitted my total dataset in

Re: [R] Sugeestion about tuning of SVM

Hi: I don't know anything about gentoypes but it sounds like you overfitted the training set so you should try using regularization. In standard svm-classification algorithms, that can be done by decreasing the parameter C which decreases the objective functional penalty for mis-classifying. (