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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_13) on Mon Jul 14 01:36:37 CEST 2008 --><TITLE>ParameterCloner (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.operator.meta.ParameterCloner class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ParameterCloner (RapidMiner Class Documentation)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/ParameterCloner.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../com/rapidminer/operator/meta/OperatorSelector.html" title="class in com.rapidminer.operator.meta"><B>PREV CLASS</B></A> <A HREF="../../../../com/rapidminer/operator/meta/ParameterIteratingOperatorChain.html" title="class in com.rapidminer.operator.meta"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?com/rapidminer/operator/meta/ParameterCloner.html" target="_top"><B>FRAMES</B></A> <A HREF="ParameterCloner.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">com.rapidminer.operator.meta</FONT><BR>Class ParameterCloner</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/rapidminer/operator/Operator.html" title="class in com.rapidminer.operator">com.rapidminer.operator.Operator</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.rapidminer.operator.meta.ParameterCloner</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../com/rapidminer/gui/wizards/ConfigurationListener.html" title="interface in com.rapidminer.gui.wizards">ConfigurationListener</A>, <A HREF="../../../../com/rapidminer/gui/wizards/PreviewListener.html" title="interface in com.rapidminer.gui.wizards">PreviewListener</A>, <A HREF="../../../../com/rapidminer/parameter/ParameterHandler.html" title="interface in com.rapidminer.parameter">ParameterHandler</A>, <A HREF="../../../../com/rapidminer/tools/LoggingHandler.html" title="interface in com.rapidminer.tools">LoggingHandler</A></DD></DL><HR><DL><DT><PRE>public class <B>ParameterCloner</B><DT>extends <A HREF="../../../../com/rapidminer/operator/Operator.html" title="class in com.rapidminer.operator">Operator</A></DL></PRE><P>Sets a list of parameters using existing parameter values. <br/> The operator is similar to <A HREF="../../../../com/rapidminer/operator/meta/ParameterSetter.html" title="class in com.rapidminer.operator.meta"><CODE>ParameterSetter</CODE></A>, but differs from that in not requiring a ParameterSet input. It simply reads a parameter value from a source and uses it to set the parameter value of a target parameter. Both, source and target, are given in the format 'operator'.'parameter'. <br/> This operator is more general than ParameterSetter and could completely replace it. It is most useful, if you need a parameter which is optimized more than once within the optimization loop - ParameterSetter cannot be used here. <br/> These parameters can either be generated by a <A HREF="../../../../com/rapidminer/operator/meta/ParameterOptimizationOperator.html" title="class in com.rapidminer.operator.meta"><CODE>ParameterOptimizationOperator</CODE></A> or read by a <A HREF="../../../../com/rapidminer/operator/io/ParameterSetLoader.html" title="class in com.rapidminer.operator.io"><CODE>ParameterSetLoader</CODE></A>. This operator is useful, e.g. in the following scenario. If one wants to find the best parameters for a certain learning scheme, one usually is also interested in the model generated with this parameters. While the first is easily possible using a <A HREF="../../../../com/rapidminer/operator/meta/ParameterOptimizationOperator.html" title="class in com.rapidminer.operator.meta"><CODE>ParameterOptimizationOperator</CODE></A>, the latter is not possible because the <A HREF="../../../../com/rapidminer/operator/meta/ParameterOptimizationOperator.html" title="class in com.rapidminer.operator.meta"><CODE>ParameterOptimizationOperator</CODE></A> does not return the IOObjects produced within, but only a parameter set. This is, because the parameter optimization operator knows nothing about models, but only about the performance vectors produced within. Producing performance vectors does not necessarily require a model. <br/> To solve this problem, one can use a <code>ParameterSetter</code>. Usually, a process definition with a <code>ParameterSetter</code> contains at least two operators of the same type, typically a learner. One learner may be an inner operator of the <A HREF="../../../../com/rapidminer/operator/meta/ParameterOptimizationOperator.html" title="class in com.rapidminer.operator.meta"><CODE>ParameterOptimizationOperator</CODE></A> and may be named "Learner", whereas a second learner of the same type named "OptimalLearner" follows the parameter optimization and should use the optimal parameter set found by the optimization. In order to make the <code>ParameterSetter</code> set the optimal parameters of the right operator, one must specify its name. Therefore, the parameter list <var>name_map</var> was introduced. Each parameter in this list maps the name of an operator that was used during optimization (in our case this is "Learner") to an operator that should now use these parameters (in our case this is "OptimalLearner").<P><P><DL><DT><B>Version:</B></DT> <DD>$Id: ParameterCloner.java,v 1.6 2008/07/07 07:06:39 ingomierswa Exp $</DD><DT><B>Author:</B></DT> <DD>Robert Rudolph</DD></DL><HR><P>⌨️ 快捷键说明
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