AttributeTransformer.java
资源名称:Weka-3-2.rar [点击查看]
上传用户:rhdiban
上传日期:2013-08-09
资源大小:15085k
文件大小:2k
源码类别:
Windows编程
开发平台:
Java
- /*
- * This program 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 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * AttributeTransformer.java
- * Copyright (C) 2000 Mark Hall
- *
- */
- package weka.attributeSelection;
- import java.io.*;
- import weka.core.*;
- /**
- * Abstract attribute transformer. Transforms the dataset.
- *
- * @author Mark Hall (mhall@cs.waikato.ac.nz)
- * @version $Revision: 1.6 $
- */
- public interface AttributeTransformer {
- // ===============
- // Public methods.
- // ===============
- /**
- * Returns just the header for the transformed data (ie. an empty
- * set of instances. This is so that AttributeSelection can
- * determine the structure of the transformed data without actually
- * having to get all the transformed data through getTransformedData().
- * @return the header of the transformed data.
- * @exception Exception if the header of the transformed data can't
- * be determined.
- */
- Instances transformedHeader() throws Exception;
- /**
- * Returns the transformed data
- * @return A set of instances representing the transformed data
- * @exception Exception if the attribute could not be evaluated
- */
- Instances transformedData() throws Exception;
- /**
- * Transforms an instance in the format of the original data to the
- * transformed space
- * @return a transformed instance
- * @exception Exception if the instance could not be transformed
- */
- Instance convertInstance(Instance instance) throws Exception;
- }
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