/
classify.go
50 lines (41 loc) · 883 Bytes
/
classify.go
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package main
import (
"flag"
"fmt"
"strconv"
"github.com/sjwhitworth/golearn/base"
"github.com/sjwhitworth/golearn/evaluation"
"github.com/sjwhitworth/golearn/knn"
)
func main() {
flag.Parse()
if len(flag.Args()) < 2 {
fmt.Printf("usage: classify filename k\n")
return
}
dataset := flag.Args()[0]
rawData, err := base.ParseCSVToInstances(dataset, false)
if err != nil {
fmt.Println(err)
return
}
k, err := strconv.Atoi(flag.Args()[1])
if err != nil {
fmt.Println(err)
return
}
cls := knn.NewKnnClassifier("euclidean", "linear", k)
train, test := base.InstancesTrainTestSplit(rawData, 0.50)
cls.Fit(train)
p, err := cls.Predict(test)
if err != nil {
fmt.Println(err)
return
}
confusionMat, err := evaluation.GetConfusionMatrix(test, p)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(evaluation.GetSummary(confusionMat))
}