svm requires that your x input be a numeric matrix. The double quotes denote character values in your matrix, probably introduced as a result of conversion from a data frame.
To convert to a numeric matrix and remove the double quotes: mode(mdt01bis) <- "numeric" -- View this message in context: http://r.789695.n4.nabble.com/tune-svm-tp2209804p2259448.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
