如何將參數傳遞給「Matlab Weka接口」

Question

我已經從here安裝了「Matlab Weka接口」。我使用BayesNet的代碼如下，但它引發異常。請幫助我如何通過選項。

代碼：

try 
    classifierNo=classifierNo+1; 
    wekaClassifierName = 'bayes.BayesNet'; 
    wekaClassifierConfig = {'-D -Q weka.classifiers.bayes.net.search.local.K2 -- -P 1 -S BAYES -E weka.classifiers.bayes.net.estimate.SimpleEstimator -- -A 0.5'}; 

    for i = 1:10 
     test = (indices == i); 
     train = ~test; 
     testSize = sum(test); 

     if testOriginal==0 
      train = [num2cell(mskMat(train,:)),irisLabels(train,:)]; 
      test = [num2cell(global_origMat(test,:)),irisLabels(test,:)]; 

      %Convert to weka format 
      train = matlab2weka('iTrain',featureNames,train,classIndex); 
      test = matlab2weka('iTest',featureNames,test); 

      %Train the classifier 
      nb = trainWekaClassifier(train,wekaClassifierName,wekaClassifierConfig); 

      %Test the classifier 
      predicted = wekaClassify(test,nb); 

      %The actual class labels (i.e. indices thereof) 
      actual = test.attributeToDoubleArray(classIndex-1); 

      correctRate = sum(actual == predicted)/testSize; 
     else 
      train = [num2cell(global_origMat(train,:)),irisLabels(train,:)]; 
      test = [num2cell(global_origMat(test,:)),irisLabels(test,:)]; 

      %Convert to weka format 
      train = matlab2weka('iTrain',featureNames,train,classIndex); 
      test = matlab2weka('iTest',featureNames,test); 

      %Train the classifier 
      nb = trainWekaClassifier(train,wekaClassifierName,wekaClassifierConfig); 

      %Test the classifier 
      predicted = wekaClassify(test,nb); 

      %The actual class labels (i.e. indices thereof) 
      actual = test.attributeToDoubleArray(classIndex-1); 

      correctRate = sum(actual == predicted)/testSize; 
     end 
    end 

    fprintf ('%f \n\t\t\t\t\t\t',correctRate); 
    sumCorrect(classifierNo)=sumCorrect(classifierNo)+correctRate; 
    repeatClassifier(classifierNo) = repeatClassifier(classifierNo) + 1; 
end 

的誤差如下：

 
Error using weka.classifiers.bayes.BayesNet/setOptions 
Java exception occurred: 
java.lang.Exception: Illegal options: -D -Q weka.classifiers.bayes.net.search.local.K2 -- -P 1 -S BAYES -E 
weka.classifiers.bayes.net.estimate.SimpleEstimator -- -A 0.5 

    at weka.core.Utils.checkForRemainingOptions(Utils.java:482) 

    at weka.classifiers.bayes.BayesNet.setOptions(BayesNet.java:510)" 

Answer 1

錯誤意味着你在變量wekaClassifierConfig使用無效參數傳遞。我對這個軟件包並不熟悉，所以我不知道哪個參數不好，我會先回到文檔或逐個刪除參數，以查看哪個參數導致錯誤。