/**
* Tests the CostCurve generation from the command line. The classifier is currently hardcoded.
* Pipe in an arff file.
*
* @param args currently ignored
*/
public static void main(String[] args) {
try {
Instances inst = new Instances(new java.io.InputStreamReader(System.in));
inst.setClassIndex(inst.numAttributes() - 1);
CostCurve cc = new CostCurve();
EvaluationUtils eu = new EvaluationUtils();
Classifier classifier = new features.classifiers.functions.Logistic();
FastVector predictions = new FastVector();
for (int i = 0; i < 2; i++) { // Do two runs.
eu.setSeed(i);
predictions.appendElements(eu.getCVPredictions(classifier, inst, 10));
// System.out.println("\n\n\n");
}
Instances result = cc.getCurve(predictions);
System.out.println(result);
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* Accept an instance for processing by StreamableFilters only
*
* @param e an <code>InstanceEvent</code> value
*/
public void acceptInstance(InstanceEvent e) {
// to do!
if (m_filterThread != null) {
String messg =
Messages.getInstance().getString("Filter_AcceptInstance_Mess_Text_First")
+ statusMessagePrefix()
+ Messages.getInstance().getString("Filter_AcceptInstance_Mess_Text_Second");
if (m_log != null) {
m_log.logMessage(messg);
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_First"));
} else {
System.err.println(messg);
}
return;
}
if (!(m_Filter instanceof StreamableFilter)) {
stop(); // stop all processing
if (m_log != null) {
m_log.logMessage(
Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_First")
+ statusMessagePrefix()
+ Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_Second")
+ m_Filter.getClass().getName()
+ Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_Third"));
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Second"));
}
return;
}
if (e.getStatus() == InstanceEvent.FORMAT_AVAILABLE) {
try {
m_instanceCount = 0;
// notifyInstanceListeners(e);
// Instances dataset = e.getInstance().dataset();
Instances dataset = e.getStructure();
if (m_Filter instanceof SupervisedFilter) {
// defualt to last column if no class is set
if (dataset.classIndex() < 0) {
dataset.setClassIndex(dataset.numAttributes() - 1);
}
}
// initialize filter
m_Filter.setInputFormat(dataset);
// attempt to determine post-filtering
// structure. If successful this can be passed on to instance
// listeners as a new FORMAT_AVAILABLE event.
m_structurePassedOn = false;
try {
if (m_Filter.isOutputFormatDefined()) {
// System.err.println("Filter - passing on output format...");
// System.err.println(m_Filter.getOutputFormat());
m_ie.setStructure(m_Filter.getOutputFormat());
notifyInstanceListeners(m_ie);
m_structurePassedOn = true;
}
} catch (Exception ex) {
stop(); // stop all processing
if (m_log != null) {
m_log.logMessage(
Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_Fourth")
+ statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_LogMessage_Text_Fifth")
+ ex.getMessage());
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Third"));
} else {
System.err.println(
Messages.getInstance().getString("Filter_AcceptInstance_Error_Text_First")
+ statusMessagePrefix()
+ Messages.getInstance().getString("Filter_AcceptInstance_Error_Text_Second"));
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
return;
}
if (e.getStatus() == InstanceEvent.BATCH_FINISHED) {
// get the last instance (if available)
try {
if (m_log != null) {
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Fourth"));
}
if (m_Filter.input(e.getInstance())) {
Instance filteredInstance = m_Filter.output();
if (filteredInstance != null) {
if (!m_structurePassedOn) {
// pass on the new structure first
m_ie.setStructure(new Instances(filteredInstance.dataset(), 0));
notifyInstanceListeners(m_ie);
m_structurePassedOn = true;
}
m_ie.setInstance(filteredInstance);
// if there are instances pending for output don't want to send
// a batch finisehd at this point...
// System.err.println("Filter - in batch finisehd...");
if (m_Filter.batchFinished() && m_Filter.numPendingOutput() > 0) {
m_ie.setStatus(InstanceEvent.INSTANCE_AVAILABLE);
} else {
m_ie.setStatus(e.getStatus());
}
notifyInstanceListeners(m_ie);
}
}
if (m_log != null) {
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Fourth_Alpha"));
}
} catch (Exception ex) {
stop(); // stop all processing
if (m_log != null) {
m_log.logMessage(
Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_Sixth")
+ statusMessagePrefix()
+ ex.getMessage());
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Fifth"));
}
ex.printStackTrace();
}
// check for any pending instances that we might need to pass on
try {
if (m_Filter.batchFinished() && m_Filter.numPendingOutput() > 0) {
if (m_log != null) {
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Sixth"));
}
Instance filteredInstance = m_Filter.output();
if (filteredInstance != null) {
if (!m_structurePassedOn) {
// pass on the new structure first
m_ie.setStructure(new Instances(filteredInstance.dataset(), 0));
notifyInstanceListeners(m_ie);
m_structurePassedOn = true;
}
m_ie.setInstance(filteredInstance);
// TODO here is the problem I think
m_ie.setStatus(InstanceEvent.INSTANCE_AVAILABLE);
notifyInstanceListeners(m_ie);
}
while (m_Filter.numPendingOutput() > 0) {
filteredInstance = m_Filter.output();
m_ie.setInstance(filteredInstance);
// System.err.println("Filter - sending pending...");
if (m_Filter.numPendingOutput() == 0) {
m_ie.setStatus(InstanceEvent.BATCH_FINISHED);
} else {
m_ie.setStatus(InstanceEvent.INSTANCE_AVAILABLE);
}
notifyInstanceListeners(m_ie);
}
if (m_log != null) {
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Seventh"));
}
}
} catch (Exception ex) {
stop(); // stop all processing
if (m_log != null) {
m_log.logMessage(
Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_Seventh")
+ statusMessagePrefix()
+ ex.toString());
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Eighth"));
}
ex.printStackTrace();
}
} else {
// pass instance through the filter
try {
if (!m_Filter.input(e.getInstance())) {
// System.err.println("Filter - inputing instance into filter...");
/* if (m_log != null) {
m_log.logMessage("ERROR : filter not ready to output instance");
} */
// quietly return. Filter might be able to output some instances
// once the batch is finished.
return;
}
// collect output instance.
Instance filteredInstance = m_Filter.output();
if (filteredInstance == null) {
return;
}
m_instanceCount++;
if (!m_structurePassedOn) {
// pass on the new structure first
m_ie.setStructure(new Instances(filteredInstance.dataset(), 0));
notifyInstanceListeners(m_ie);
m_structurePassedOn = true;
}
m_ie.setInstance(filteredInstance);
m_ie.setStatus(e.getStatus());
if (m_log != null && (m_instanceCount % 10000 == 0)) {
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Nineth")
+ m_instanceCount
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Tenth"));
}
notifyInstanceListeners(m_ie);
} catch (Exception ex) {
stop(); // stop all processing
if (m_log != null) {
m_log.logMessage(
Messages.getInstance().getString("Filter_AcceptInstance_LogMessage_Text_Eighth")
+ statusMessagePrefix()
+ ex.toString());
m_log.statusMessage(
statusMessagePrefix()
+ Messages.getInstance()
.getString("Filter_AcceptInstance_StatusMessage_Text_Eleventh"));
}
ex.printStackTrace();
}
}
}