Add a data row of both strings and doubles

spoi

Hi all,

I need a little bit help to access rapid miner into my application. I stored my data like a columnstore, so each column has an own format (string, double, int).

It this possible to add instead of a double data row to add a row with different formats in each column?

Here is my code:

		RapidMiner.init();		
		Process process = new Process(pathtoProcessXML);

	    // create attribute list
		List<Attribute> attributes = new LinkedList<Attribute>();
		attributes.add(AttributeFactory.createAttribute("att1", Ontology.INTEGER));
		Attribute lable = AttributeFactory.createAttribute("label", Ontology.NOMINAL);
		lable.getMapping().mapString("0");
		lable.getMapping().mapString("1");
		attributes.add(lable);

	    // create table content
		MemoryExampleTable table = new MemoryExampleTable(attributes);

		double[] data = new double[2];
		data[0] = 0;
		data[1] = 0;
		table.addDataRow(new DoubleArrayDataRow(data));

	    // create example set
	    ExampleSet exampleSet = table.createExampleSet(lable);
	    
	    // Print table
	    for (int row = 0; row < table.size(); row++) {
		    System.out.println(table.getDataRow(row));
		}
	    
	    System.out.println(exampleSet.toResultString());

	    // run the process with new IOContainer using the created exampleSet	   
	    process.run(new IOContainer(exampleSet)); 

Gives the rapid miner library a possibility to add different column types?

Thanks a lot for answering!

Marco_Boeck

Hi,

internally everything is stored as a double, there is no mixed row. So when looking at a data row you need to also look at the attribute to find out what exactly to do with the data.
Please also be aware that since you are integrating RapidMiner into your application and RapidMiner uses the AGPL 3 license, your application must also be released under AGPL 3. If that is not possible/desirable, please contact us for a RapidMiner OEM license.

Regards,
Marco