parametersetter.html
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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>ParameterSetter (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.operator.meta.ParameterSetter class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ParameterSetter (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/ParameterSetter.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/ParameterSet.html" title="class in com.rapidminer.operator.meta"><B>PREV CLASS</B></A> <A HREF="../../../../com/rapidminer/operator/meta/ParameterValue.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/ParameterSetter.html" target="_top"><B>FRAMES</B></A> <A HREF="ParameterSetter.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 ParameterSetter</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.ParameterSetter</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>ParameterSetter</B><DT>extends <A HREF="../../../../com/rapidminer/operator/Operator.html" title="class in com.rapidminer.operator">Operator</A></DL></PRE><P>Sets a set of parameters. 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 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: ParameterSetter.java,v 1.6 2008/07/07 07:06:39 ingomierswa Exp $</DD><DT><B>Author:</B></DT> <DD>Simon Fischer, Ingo Mierswa</DD></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR>⌨️ 快捷键说明
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