Go 机器学习框架：GoLearn

网址： https://github.com/sjwhitworth/golearn

GoLearn 是一款 Go 语言机器学习框架，示例代码：

package main

import (
    "fmt"

    "github.com/sjwhitworth/golearn/base"
    "github.com/sjwhitworth/golearn/evaluation"
    "github.com/sjwhitworth/golearn/knn"
)

func main() {
    // Load in a dataset, with headers. Header attributes will be stored.
    // Think of instances as a Data Frame structure in R or Pandas.
    // You can also create instances from scratch.
    rawData, err := base.ParseCSVToInstances("datasets/iris.csv", false)
    if err != nil {
        panic(err)
    }

    // Print a pleasant summary of your data.
    fmt.Println(rawData)

    //Initialises a new KNN classifier
    cls := knn.NewKnnClassifier("euclidean", 2)

    //Do a training-test split
    trainData, testData := base.InstancesTrainTestSplit(rawData, 0.50)
    cls.Fit(trainData)

    //Calculates the Euclidean distance and returns the most popular label
    predictions := cls.Predict(testData)
    fmt.Println(predictions)

    // Prints precision/recall metrics
    confusionMat, err := evaluation.GetConfusionMatrix(testData, predictions)
    if err != nil {
        panic(fmt.Sprintf("Unable to get confusion matrix: %s", err.Error()))
    }
    fmt.Println(evaluation.GetSummary(confusionMat))
}

项目主页：http://www.open-open.com/lib/view/home/1422329609892