我试图在Netbeans中运行一些大规模在线分析(MOA)的演示代码。以下是代码:
package javaapplication10_moa;
import moa.classifiers.trees.HoeffdingTree;
import moa.classifiers.Classifier;
import moa.core.TimingUtils;
import moa.streams.generators.RandomRBFGenerator;
import com.yahoo.labs.samoa.instances.Instance;
import java.io.IOException;
/**
*
* @author LENOVO
*/
public class JavaApplication10_MOA {
public JavaApplication10_MOA(){
}
public void run(int numInstances, boolean isTesting){
Classifier learner = new HoeffdingTree();
RandomRBFGenerator stream = new RandomRBFGenerator();
stream.prepareForUse();
learner.setModelContext(stream.getHeader());
learner.prepareForUse();
int numberSamplesCorrect = 0;
int numberSamples = 0;
boolean preciseCPUTiming = TimingUtils.enablePreciseTiming();
long evaluateStartTime = TimingUtils.getNanoCPUTimeOfCurrentThread();
while (stream.hasMoreInstances() && numberSamples < numInstances) {
Instance trainInst = stream.nextInstance().getData();
if (isTesting) {
if (learner.correctlyClassifies(trainInst)){
numberSamplesCorrect++;
}
}
numberSamples++;
learner.trainOnInstance(trainInst);
}
double accuracy = 100.0 * (double) numberSamplesCorrect/ (double) numberSamples;
double time = TimingUtils.nanoTimeToSeconds(TimingUtils.getNanoCPUTimeOfCurrentThread()- evaluateStartTime);
System.out.println(numberSamples + " instances processed with " + accuracy + "% accuracy in "+time+" seconds.");
}
public static void main(String[] args) throws IOException {
JavaApplication10_MOA exp = new JavaApplication10_MOA();
exp.run(1000000, true);
}
}这是输出:
无法访问仪表环境。请检查是否在java的“SizeOfAgent”命令行参数中指定了包含-javaagent类的jar文件。在5.5秒内处理了1000000个实例,准确率为91.0458%。成功构建(总时间:5秒)
问题是Netbeans无法访问检测环境,我认为它类似于配置文件。我尝试了Netbeans如何在Java中设置命令行参数的建议,通过运行-> Set Project ->定制。将参数设置为-javaagent:sizeofag.jar。(请帮帮我,谢谢你!)
发布于 2017-07-15 07:50:54
我通常通过Project->Properties->Run->VM和以下选项设置java代理:
-javaagent:"<full path to jar>/target.jar"此外,我在netbens论坛在NetBeans中配置javaagent上找到了老话题,所以它应该能工作。
PS:请看下面

顺便说一下,我下载了moa-release-2016.04.zip,解压缩,在Netbeans中创建了简单的java项目,在Library部分添加了<path>/moa-release-2016.04/lib/moa-2016.04.jar路径,并且运行代码时没有任何错误或警告。在Run部分,我甚至没有提到javaagent。这是我的输出窗口:
run:
1000000 instances processed with 91.0458% accuracy in 5.480392592 seconds.
BUILD SUCCESSFUL (total time: 5 seconds)https://stackoverflow.com/questions/44969739
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