Hello to everyone,
I'm using netbeans to create a project in rapidminer. So when i run the project in rapidminer everything seems great, but in netbeans something goes wrong and i dont know what's going on.
Here is the Xml Code on RM:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.1.017">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="5.1.017" expanded="true" name="Process">
<process expanded="true" height="550" width="815">
<operator activated="true" class="text:process_document_from_file" compatibility="5.1.004" expanded="true" height="76" name="Process Documents from Files" width="90" x="112" y="120">
<list key="text_directories">
<parameter key="Positive" value="C:\Users\Antonio\Desktop\desktop\datamining\comments\Positive"/>
<parameter key="Negative" value="C:\Users\Antonio\Desktop\desktop\datamining\comments\Negative"/>
</list>
<process expanded="true" height="594" width="966">
<operator activated="true" class="text:tokenize" compatibility="5.1.004" expanded="true" height="60" name="Tokenize" width="90" x="124" y="126"/>
<operator activated="true" class="text:filter_stopwords_english" compatibility="5.1.004" expanded="true" height="60" name="Filter Stopwords (English)" width="90" x="312" y="124"/>
<operator activated="true" class="text:transform_cases" compatibility="5.1.004" expanded="true" height="60" name="Transform Cases" width="90" x="581" y="120"/>
<connect from_port="document" to_op="Tokenize" to_port="document"/>
<connect from_op="Tokenize" from_port="document" to_op="Filter Stopwords (English)" to_port="document"/>
<connect from_op="Filter Stopwords (English)" from_port="document" to_op="Transform Cases" to_port="document"/>
<connect from_op="Transform Cases" from_port="document" to_port="document 1"/>
<portSpacing port="source_document" spacing="0"/>
<portSpacing port="sink_document 1" spacing="0"/>
<portSpacing port="sink_document 2" spacing="0"/>
</process>
</operator>
<operator activated="true" class="text:read_document" compatibility="5.1.004" expanded="true" height="60" name="Read Document" width="90" x="112" y="345">
<parameter key="file" value="C:\Users\Antonio\Desktop\desktop\datamining\comments\positive example.txt"/>
</operator>
<operator activated="true" class="x_validation" compatibility="5.1.002" expanded="true" height="112" name="Validation" width="90" x="447" y="75">
<description>A cross-validation evaluating a decision tree model.</description>
<parameter key="parallelize_training" value="true"/>
<parameter key="parallelize_testing" value="true"/>
<process expanded="true" height="654" width="466">
<operator activated="true" class="k_nn" compatibility="5.1.017" expanded="true" height="76" name="k-NN" width="90" x="155" y="55"/>
<connect from_port="training" to_op="k-NN" to_port="training set"/>
<connect from_op="k-NN" from_port="model" to_port="model"/>
<portSpacing port="source_training" spacing="0"/>
<portSpacing port="sink_model" spacing="0"/>
<portSpacing port="sink_through 1" spacing="0"/>
</process>
<process expanded="true" height="654" width="466">
<operator activated="true" class="apply_model" compatibility="5.1.017" expanded="true" height="76" name="Apply Model" width="90" x="45" y="30">
<list key="application_parameters"/>
</operator>
<operator activated="true" class="performance" compatibility="5.1.017" expanded="true" height="76" name="Performance" width="90" x="179" y="30"/>
<connect from_port="model" to_op="Apply Model" to_port="model"/>
<connect from_port="test set" to_op="Apply Model" to_port="unlabelled data"/>
<connect from_op="Apply Model" from_port="labelled data" to_op="Performance" to_port="labelled data"/>
<connect from_op="Performance" from_port="performance" to_port="averagable 1"/>
<portSpacing port="source_model" spacing="0"/>
<portSpacing port="source_test set" spacing="0"/>
<portSpacing port="source_through 1" spacing="0"/>
<portSpacing port="sink_averagable 1" spacing="0"/>
<portSpacing port="sink_averagable 2" spacing="0"/>
</process>
</operator>
<operator activated="true" class="text:read_document" compatibility="5.1.004" expanded="true" height="60" name="Read Document (2)" width="90" x="112" y="480">
<parameter key="file" value="C:\Users\Antonio\Desktop\desktop\datamining\comments\negative example.txt"/>
</operator>
<operator activated="true" class="text:process_documents" compatibility="5.1.004" expanded="true" height="112" name="Process Documents" width="90" x="313" y="390">
<parameter key="vector_creation" value="Term Frequency"/>
<process expanded="true" height="594" width="966">
<operator activated="true" class="text:tokenize" compatibility="5.1.004" expanded="true" height="60" name="Tokenize (2)" width="90" x="123" y="159"/>
<operator activated="true" class="text:filter_stopwords_english" compatibility="5.1.004" expanded="true" height="60" name="Filter Stopwords (2)" width="90" x="313" y="165"/>
<operator activated="true" class="text:transform_cases" compatibility="5.1.004" expanded="true" height="60" name="Transform Cases (2)" width="90" x="446" y="158"/>
<connect from_port="document" to_op="Tokenize (2)" to_port="document"/>
<connect from_op="Tokenize (2)" from_port="document" to_op="Filter Stopwords (2)" to_port="document"/>
<connect from_op="Filter Stopwords (2)" from_port="document" to_op="Transform Cases (2)" to_port="document"/>
<connect from_op="Transform Cases (2)" from_port="document" to_port="document 1"/>
<portSpacing port="source_document" spacing="0"/>
<portSpacing port="sink_document 1" spacing="0"/>
<portSpacing port="sink_document 2" spacing="0"/>
</process>
</operator>
<operator activated="true" class="apply_model" compatibility="5.1.017" expanded="true" height="76" name="Apply Model (2)" width="90" x="715" y="210">
<list key="application_parameters"/>
</operator>
<connect from_op="Process Documents from Files" from_port="example set" to_op="Validation" to_port="training"/>
<connect from_op="Read Document" from_port="output" to_op="Process Documents" to_port="documents 1"/>
<connect from_op="Validation" from_port="model" to_op="Apply Model (2)" to_port="model"/>
<connect from_op="Validation" from_port="averagable 1" to_port="result 2"/>
<connect from_op="Read Document (2)" from_port="output" to_op="Process Documents" to_port="documents 2"/>
<connect from_op="Process Documents" from_port="example set" to_op="Apply Model (2)" to_port="unlabelled data"/>
<connect from_op="Apply Model (2)" from_port="labelled data" to_port="result 3"/>
<connect from_op="Apply Model (2)" from_port="model" to_port="result 1"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
<portSpacing port="sink_result 3" spacing="0"/>
<portSpacing port="sink_result 4" spacing="0"/>
</process>
</operator>
</process>
The Java Code in Netbeans:
import com.rapidminer.RapidMiner;
import com.rapidminer.RapidMiner.ExecutionMode;
import com.rapidminer.operator.IOContainer;
import com.rapidminer.Process;
import com.rapidminer.example.Attribute;
import com.rapidminer.example.Example;
import com.rapidminer.example.ExampleSet;
import com.rapidminer.example.table.ExampleTable;
import com.rapidminer.operator.OperatorException;
import com.rapidminer.tools.XMLException;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
public class RMJava extends javax.swing.JFrame {
/** Creates new form RMJava */
public RMJava() {
initComponents();
}
@SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jButton1 = new javax.swing.JButton();
textArea1 = new java.awt.TextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton1.setText("Run");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(352, Short.MAX_VALUE)
.addComponent(jButton1)
.addGap(346, 346, 346))
.addGroup(layout.createSequentialGroup()
.addGap(76, 76, 76)
.addComponent(textArea1, javax.swing.GroupLayout.PREFERRED_SIZE, 603, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(70, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(79, 79, 79)
.addComponent(textArea1, javax.swing.GroupLayout.PREFERRED_SIZE, 368, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 23, Short.MAX_VALUE)
.addComponent(jButton1)
.addGap(39, 39, 39))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
try {
// TODO add your handling code here:
RapidMiner.setExecutionMode(ExecutionMode.COMMAND_LINE);
RapidMiner.init();
File x=new File("C://Users//Antonio//.RapidMiner5//part1.RMP");
Process process = new Process(x);
IOContainer ioResult=process.run();
ExampleSet resultSet=(ExampleSet)ioResult.getElementAt(0);
ExampleTable mytable=resultSet.getExampleTable();
for(int i=0; i<mytable.size()-1; i++)
{
Example example=resultSet.getExample(i);
Attribute predict=example.getAttributes().get("prediction(Play)");
String resultString=example.getValueAsString(predict);
//System.out.println(resultString);
textArea1.setText(textArea1.getText()+"\n"+resultString);
}
} catch (OperatorException ex) {
Logger.getLogger(RMJava.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(RMJava.class.getName()).log(Level.SEVERE, null, ex);
} catch (XMLException ex) {
Logger.getLogger(RMJava.class.getName()).log(Level.SEVERE, null, ex);
}
}
public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(RMJava.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(RMJava.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(RMJava.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(RMJava.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new RMJava().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private java.awt.TextArea textArea1;
// End of variables declaration
}
And i get this the error:
Jan 31, 2012 6:44:11 PM com.rapidminer.Process run
INFO: Process C:\Users\Antonio\.RapidMiner5\part1.RMP finished successfully after 4 s
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: com.rapidminer.operator.learner.lazy.KNNClassificationModel cannot be cast to com.rapidminer.example.ExampleSet
at RMJava.jButton1ActionPerformed(RMJava.java:93)
at RMJava.access$000(RMJava.java:30)
at RMJava$1.actionPerformed(RMJava.java:54)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2713)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
at java.awt.EventQueue.access$000(EventQueue.java:101)
at java.awt.EventQueue$3.run(EventQueue.java:666)
at java.awt.EventQueue$3.run(EventQueue.java:664)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:680)
at java.awt.EventQueue$4.run(EventQueue.java:678)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
I can't figure out why k-NN classification model cannot be cast? Any help is much appreciated...thanks!!!
