Bt sir i did't get it ,can you give me specific example ?
0
Marco_BoeckAdministrator, Moderator, Employee, Member, University ProfessorPosts:1,984RM Engineering
Hi,
please be a bit more specific. The FAQ contains information and examples from making Studio available in Eclipse (and your project) to executing processes and inspecting the results. What exactly is it you're having problems with?
IOContainer ioResult = location.run(); IOObject result = ioResult.getElementAt(0); // use the result(s) as needed, for example if your process just returns one ExampleSet, use this: if (ioResult.getElementAt(0) instanceof ExampleSet) { ExampleSet resultSet = (ExampleSet)ioResult.getElementAt(0); System.out.println(result); int i=0; for (Example example : resultSet) { Iterator allAtts = example.getAttributes().allAttributes();
while(allAtts.hasNext()) { Attribute a = allAtts.next(); if(i<=3) System.out.print(a.getName()+ " ");
i++; } } System.out.println("\n"); for (Example example : resultSet) { Iterator allAtts = example.getAttributes().allAttributes();
while(allAtts.hasNext()) { Attribute a = allAtts.next();
if (a.isNumerical()) { double value = example.getValue(a); System.out.print(value+ " " ); //System.out.println("\n");
Marco_BoeckAdministrator, Moderator, Employee, Member, University ProfessorPosts:1,984RM Engineering
Hi,
you're trying to access an operator which cannot be found under the specified name it seems. Debug your process and see what operators it contains and how they are called. Probably you misspelled its name.
Sir i also try for clustering but i got same NullPointerException. For calling rapidminer process in eclipse XML file is required??
0
Marco_BoeckAdministrator, Moderator, Employee, Member, University ProfessorPosts:1,984RM Engineering
Hi,
to create a simply process, all you really need is a String which equals the contents of a .rmp file in your repository, aka a process. The content is XML, but you don't need any files for that.
Marco_BoeckAdministrator, Moderator, Employee, Member, University ProfessorPosts:1,984RM Engineering
Hi,
you can use your regular debugging tools for figuring out what's wrong. It's Java, after all As I already said, in that line you can only get an NPE if the operator you retrieved was null. And that is the case when you try to get an Operator from a Process via a non-existent name.
Contributor I
Answers
please have a look at the development FAQ:http://rapid-i.com/rapidforum/index.php/topic,5807.0.html
Regards,
Marco
Bt sir i did't get it ,can you give me specific example ?
please be a bit more specific. The FAQ contains information and examples from making Studio available in Eclipse (and your project) to executing processes and inspecting the results.
What exactly is it you're having problems with?
Regards,
Marco
/************************************************************************/
import com.rapidminer.RapidMiner;
import com.rapidminer.Process;
import com.rapidminer.example.Attribute;
import com.rapidminer.example.Example;
import com.rapidminer.example.ExampleSet;
import com.rapidminer.operator.IOContainer;
import com.rapidminer.operator.IOObject;
import com.rapidminer.operator.Operator;
import com.rapidminer.operator.OperatorException;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import org.freehep.graphicsio.swf.DefineBits;
import com.rapidminer.operator.io.ExcelExampleSource;
import com.rapidminer.repository.IOObjectEntry;
import com.rapidminer.repository.ProcessEntry;
import com.rapidminer.repository.RepositoryLocation;
import com.rapidminer.tools.XMLException;
public class listattribute {
public static void main(String args[]) throws Exception {
// this initializes RapidMiner with your repositories available
RapidMiner.setExecutionMode(RapidMiner.ExecutionMode.COMMAND_LINE);
RapidMiner.init();
/ /存储库中加载过程
Process location = new Process(new File("C:\\Users\\Dimpal\\.RapidMiner5\\repositories\\Local Repository\\processes\\test.rmp"));
//Entry entry = location.locateEntry();
//if (entry instanceof ProcessEntry) {
//Process process = new RepositoryProcessLocation(location).load(null);
Operator op = location.getOperator("Read Excel");
op.setParameter(ExcelExampleSource.PARAMETER_EXCEL_FILE, "C:\\Users\\Dimpal\\.RapidMiner5\\repositories\\Local Repository\\processes\\sample.xlsx");
Operator op1=location.getOperator("Replace Missing Values");
op1.setParameter("attribute","city");
op1.setParameter("default", "average");
//op1.setParameter("replenishment Value","Y");
Operator outp = location.getOperator("Write Excel");
outp.setParameter(ExcelExampleSource.PARAMETER_EXCEL_FILE, "C:\\Users\\Dimpal\\.RapidMiner5\\repositories\\Local Repository\\processes\\data2.xlsx");
//RapidMiner.setExecutionMode(RapidMiner.ExecutionMode.COMMAND_LINE);
// RapidMiner.init();
// Process location1 = new Process(new File("D:\\rm\\replacemiss.rmp"));
// Operator opa = location.getOperator("Read Excel");
//opa.setParameter(ExcelExampleSource.PARAMETER_EXCEL_FILE, "D:\\rm\\data2.xlsx");
// Operator opa1=location.getOperator("Replace Missing Values");
// opa1.setParameter("attribute","");
// opa1.setParameter("default", "average");
IOContainer ioResult = location.run();
IOObject result = ioResult.getElementAt(0);
// use the result(s) as needed, for example if your process just returns one ExampleSet, use this:
if (ioResult.getElementAt(0) instanceof ExampleSet) {
ExampleSet resultSet = (ExampleSet)ioResult.getElementAt(0);
System.out.println(result);
int i=0;
for (Example example : resultSet) {
Iterator
while(allAtts.hasNext()) {
Attribute a = allAtts.next();
if(i<=3)
System.out.print(a.getName()+ " ");
i++;
}
}
System.out.println("\n");
for (Example example : resultSet) {
Iterator
while(allAtts.hasNext()) {
Attribute a = allAtts.next();
if (a.isNumerical()) {
double value = example.getValue(a);
System.out.print(value+ " " );
//System.out.println("\n");
} else {
String value = example.getValueAsString(a);
System.out.print(value+ " ");
//System.out.println("\n");
}
}
System.out.println("\n");
}
}
}
}
/***********************************************************************/
And i got the Following exception ...
/********************************************************************************************/
Apr 30, 2015 6:55:07 PM com.rapidminer.RapidMiner performFirstInitialization
INFO: Performing upgrade from version 5.3.013 to version 5.3.015
Apr 30, 2015 6:55:08 PM com.rapidminer.tools.ParameterService init
INFO: Reading configuration resource com/rapidminer/resources/rapidminerrc.
Apr 30, 2015 6:55:08 PM com.rapidminer.tools.I18N
INFO: Set locale to en.
Apr 30, 2015 6:55:09 PM com.rapid_i.Launcher ensureRapidMinerHomeSet
INFO: Property rapidminer.home is not set. Guessing.
Apr 30, 2015 6:55:09 PM com.rapid_i.Launcher ensureRapidMinerHomeSet
INFO: Trying base directory of classes (build) 'D:\SHIVU\Project\Git'...gotcha!
Apr 30, 2015 6:55:26 PM com.rapidminer.tools.expression.parser.ExpressionParserFactory
INFO: Default version of expression parser registered successfully
Apr 30, 2015 6:55:30 PM com.rapidminer.parameter.ParameterTypePassword decryptPassword
WARNING: Password in XML file looks like unencrypted plain text.
Apr 30, 2015 6:55:39 PM com.rapidminer.tools.OperatorService init
INFO: Number of registered operator classes: 443; number of registered operator descriptions: 444; number of replacements: 403
Apr 30, 2015 6:55:40 PM com.rapidminer.tools.jdbc.JDBCProperties
WARNING: Missing database driver class name for ODBC Bridge (e.g. Access)
Apr 30, 2015 6:55:40 PM com.rapidminer.tools.jdbc.JDBCProperties registerDrivers
信息:JDBC驱动程序ca.ingres.jdbc.IngresDriver不是found. Probably the driver is not installed.
Apr 30, 2015 6:55:40 PM com.rapidminer.tools.jdbc.JDBCProperties registerDrivers
INFO: JDBC driver oracle.jdbc.driver.OracleDriver not found. Probably the driver is not installed.
Exception in thread "main" java.lang.NullPointerException
at listattribute.main(listattribute.java:44)
/********************************************************************************************/
you're trying to access an operator which cannot be found under the specified name it seems. Debug your process and see what operators it contains and how they are called. Probably you misspelled its name.
Regards,
Marco
Sir i also try for clustering but i got same NullPointerException.
For calling rapidminer process in eclipse XML file is required??
to create a simply process, all you really need is a String which equals the contents of a .rmp file in your repository, aka a process. The content is XML, but you don't need any files for that.
Regards,
Marco
Sir .rmp file is ok but i get nullpointerexception with following line:
op.setParameter(ExcelExampleSource.PARAMETER_EXCEL_FILE, "C:\\Users\\Dimpal\\.RapidMiner5\\repositories\\Local Repository\\processes\\sample.xlsx");
please reply me
you can use your regular debugging tools for figuring out what's wrong. It's Java, after all
As I already said, in that line you can only get an NPE if the operator you retrieved was null. And that is the case when you try to get an Operator from a Process via a non-existent name.
Regards,
Marco
hello sir
about the page which explain how to call rapid miner process in eclipse it doesnt working
can you help me please