"Walking skeleton" of the nearest neighbor algorithm.

nearest_neighbor_v1.scala

class Instance( featureValues: List[Double], var classLabel: String) {
}

class NearestNeighbor( library: List[Instance]) {
	def classify( query: Instance) {
		query.classLabel = "unknown"
	}
}

object NearestNeighbor {
	def create( libraryFileName: String): NearestNeighbor = {
		val library = new List[ Instance]( 10)
		new NearestNeighbor( library)
	}
}

val examples = NearestNeighbor.create( "library.data")
val query = new Instance( List( 0.0, 0.0, 0.0, 0.0), null)
examples.classify( query)
println( query.classLabel)