package ca.pfv.spmf.tools.resultConverter;
/* This file is copyright (c) 2008-2012 Philippe Fournier-Viger
*
* This file is part of the SPMF DATA MINING SOFTWARE
* (http://www.philippe-fournier-viger.com/spmf).
*
* SPMF is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
* SPMF is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along with
* SPMF. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
/**
* This example shows how to convert a result file from an integer format (item represented as integers
* to a string format (item represented as strings).
* This feature is used when an input file is converted from ARFF to the integer format.
* After that, when an algorithms is applied, the result is in integer format
* and we want to convert it back to string format before presenting the result to the user.
* <br/><br/>
* The conversion from integer to string is done by using the metadata about the equivalence
* between integer and strings that is stored in the converted input file.
*
* @author Philippe Fournier-Viger
*/
class MainTestResultConverter {
public static void main(String [] arg) throws IOException{
// the input file in integer format that contain metadata about
// which integer correspond to which string
String inputDB = fileToPath("example.txt");
// the result file in integer format
String inputResult = fileToPath("frequent_itemsets.txt");
// the resulting result file in string format
String outputFile = ".//output.txt";
try{
// create a converted
ResultConverter converter = new ResultConverter();
// do the conversion
converter.convert(inputDB, inputResult, outputFile);
}catch(Exception e){
e.printStackTrace();
}
}
public static String fileToPath(String filename) throws UnsupportedEncodingException{
URL url = MainTestResultConverter.class.getResource(filename);
return java.net.URLDecoder.decode(url.getPath(),"UTF-8");
}
}