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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 01:36:26 CEST 2008 --><TITLE>ExampleSetWriter (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.operator.io.ExampleSetWriter class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ExampleSetWriter (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/ExampleSetWriter.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/io/DBaseExampleSource.html" title="class in com.rapidminer.operator.io"><B>PREV CLASS</B></A> <A HREF="../../../../com/rapidminer/operator/io/ExampleSource.html" title="class in com.rapidminer.operator.io"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?com/rapidminer/operator/io/ExampleSetWriter.html" target="_top"><B>FRAMES</B></A> <A HREF="ExampleSetWriter.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.io</FONT><BR>Class ExampleSetWriter</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.io.ExampleSetWriter</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>ExampleSetWriter</B><DT>extends <A HREF="../../../../com/rapidminer/operator/Operator.html" title="class in com.rapidminer.operator">Operator</A></DL></PRE><P>Writes values of all examples in an <A HREF="../../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example"><CODE>ExampleSet</CODE></A> to a file. Dense, sparse, and user defined formats (specified by the parameter 'format') can be used. Attribute description files may be generated for dense and sparse format as well. These formats can be read using the <A HREF="../../../../com/rapidminer/operator/io/ExampleSource.html" title="class in com.rapidminer.operator.io"><CODE>ExampleSource</CODE></A> and <A HREF="../../../../com/rapidminer/operator/io/SparseFormatExampleSource.html" title="class in com.rapidminer.operator.io"><CODE>SparseFormatExampleSource</CODE></A> operators. <dl> <dt>dense:</dt> <dd> Each line of the generated data file is of the form<br/> <center> <pre> regular attributes <special attributes> </pre> </center> For example, each line could have the form <center> <pre> value1 value2 ... valueN <id> <label> <prediction> ... <confidences> </pre> </center> Values in parenthesis are optional and are only printed if they are available. The confidences are only given for nominal predictions. Other special attributes might be the example weight or the cluster number. </dd> <dt>sparse:</dt> <dd>Only non 0 values are written to the file, prefixed by a column index. See the description of <A HREF="../../../../com/rapidminer/operator/io/SparseFormatExampleSource.html" title="class in com.rapidminer.operator.io"><CODE>SparseFormatExampleSource</CODE></A> for details. </dd> <dt>special:</dt> <dd>Using the parameter 'special_format', the user can specify the exact format. The $ sign has a special meaning and introduces a command (the following character) Additional arguments to this command may be supplied enclosing it in square brackets. <dl> <dt>$a:</dt> <dd> All attributes separated by the default separator</dd> <dt>$a[separator]:</dt> <dd> All attributes separated by separator</dd> <dt>$s[separator][indexSeparator]:</dt> <dd> Sparse format. For all non zero attributes the following strings are concatenated: the column index, the value of indexSeparator, the attribute value. Attributes are separated by separator.</dd> <dt>$v[name]:</dt> <dd> The value of the attribute with the given name (both regular and special attributes)</dd> <dt>$k[index]:</dt> <dd> The value of the attribute with the given index</dd> <dt>$l:</dt> <dd> The label</dd> <dt>$p:</dt> <dd> The predicted label</dd> <dt>$d:</dt> <dd> All prediction confidences for all classes in the form conf(class)=value</dd> <dt>$d[class]:</dt> <dd> The prediction confidence for the defined class as a simple number</dd> <dt>$i:</dt> <dd> The id</dd> <dt>$w:</dt> <dd> The weight</dd> <dt>$b:</dt> <dd> The batch number</dd> <dt>$n:</dt> <dd> The newline character</dd> <dt>$t:</dt> <dd> The tabulator character</dd> <dt>$$:</dt> <dd> The dollar sign</dd> <dt>$[:</dt> <dd> The '[' character</dd> <dt>$]:</dt> <dd> The ']' character</dd> </dl> Make sure the format string ends with $n if you want examples to be separated by newlines!</dd> </dl><P><P><DL><DT><B>Version:</B></DT> <DD>$Id: ExampleSetWriter.java,v 1.15 2006/03/27 13:22:00 ingomierswa Exp $</DD><DT><B>Author:</B></DT> <DD>Simon Fischer, Ingo Mierswa</DD><DT><B>See Also:</B><DD><A HREF="../../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example"><CODE>ExampleSet</CODE></A></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><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../com/rapidminer/operator/io/ExampleSetWriter.html#PARAMETER_APPEND">PARAMETER_APPEND</A></B></CODE><BR> The parameter name for "Indicates if the data should be appended to an possible existing data file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../com/rapidminer/operator/io/ExampleSetWriter.html#PARAMETER_ATTRIBUTE_DESCRIPTION_FILE">PARAMETER_ATTRIBUTE_DESCRIPTION_FILE</A></B></CODE><BR>⌨️ 快捷键说明
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