I am trying to get arrf extended output file from a multidimensional array in Java. And I imported weka library, however I got an error; The type FastVector<E> is deprecated.
What can I use instead of FastVector and how I can rewrite the code below?
import weka.core.FastVector; //Error: The type FastVector<E> is deprecated.
int [][] myArray = new int[45194][12541];
for (int i = 0; i < myArray.length; i++) {
for (int j = 0; j < myArray[0].length; j++) {
System.out.print(myArray[i][j]+" ");
}
System.out.println("");
}
int numAtts = myArray[0].length;
FastVector atts = new FastVector(numAtts);
for (int att = 0; att < numAtts; att++) {
atts.addElement(new Attribute("Attribute" + att, att));
}
int numInstances = myArray.length;
Instances dataset = new Instances("Dataset", atts, numInstances);
for (int inst = 0; inst < numInstances; inst++) {
dataset.add(new Instance(1.0, myArray[inst])); //Error: Cannot instantiate the type Instance
}
BufferedWriter writer = new BufferedWriter(new FileWriter("test.arff"));
writer.write(dataset.toString());
writer.flush();
writer.close();
Weka now uses typed ArrayLists most places. You can use ArrayList<Attribute>
for this:
ArrayList<Attribute> atts = new ArrayList<Attribute>();
for (int att = 0; att < numAtts; att++) {
atts.add(new Attribute("Attribute" + att, att));
}
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