R/selectK.R

In MAIT: Statistical Analysis of Metabolomic Data

##
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## All code copyright (c) 2013 UPC/UB
## All accompanying written materials copyright (c) 2013 UPC/UB
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##   This program is free software: you can redistribute it and/or modify
##    it under the terms of the GNU General Public License as published by
##    the Free Software Foundation, either version 2 of the License, or
##    (at your option) any later version.
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##    GNU General Public License for more details.
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selectK <- function(data, class, max.k) {
	error.k <- rep(-9, max.k)
	for (i in 1:max.k) {
		error.k[i] <- length(which(class != knn.cv(data, class, k = i)))
	}
	return(which.min(error.k))
}