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import
java.io.File;
import
weka.classifiers.Classifier;
import
weka.classifiers.trees.J48;
import
weka.core.Instances;
import
weka.core.converters.ArffLoader;
½«ÒÔÏ´úÂëÌí¼Óµ½Main
º¯ÊýÖÐ
Classifier m_classifier =
new
J48();
File inputFile =
new
File(
"D:\\Program Files\\Weka-3-6\\data\\cpu.with.vendor.arff"
);
//
ѵÁ·ÓïÁÏÎļþ
ArffLoader atf =
new
ArffLoader();
atf.setFile(inputFile);
Instances instancesTrain = atf.getDataSet();
//
¶ÁÈëѵÁ·Îļþ
inputFile =
new
File(
"D:\\Program Files\\Weka-3-6\\data\\cpu.with.vendor.arff"
);
//
²âÊÔÓïÁÏÎļþ
atf.setFile(inputFile);
Instances instancesTest = atf.getDataSet();
//
¶ÁÈë²âÊÔÎļþ
instancesTest.setClassIndex(0);
//
ÉèÖ÷ÖÀàÊôÐÔËùÔÚÐкţ¨µÚÒ»ÐÐΪ
0
ºÅ£©£¬
instancesTest.numAttributes()
¿ÉÒÔÈ¡µÃÊôÐÔ×ÜÊý
double
sum = instancesTest.numInstances(),
//
²âÊÔÓïÁÏʵÀýÊý
right = 0.0f;
instancesTrain.setClassIndex(0);
m_classifier.buildClassifier(instancesTrain);
//
ѵÁ·
for
(
int
i = 0;i<sum;i++)
//
²âÊÔ·ÖÀà½á¹û
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