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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 01:33:48 CEST 2008 --><TITLE>FastExample2SparseTransform (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.example.FastExample2SparseTransform class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="FastExample2SparseTransform (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/FastExample2SparseTransform.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/example/ExampleSetFactory.html" title="class in com.rapidminer.example"><B>PREV CLASS</B></A> <A HREF="../../../com/rapidminer/example/FormatterException.html" title="class in com.rapidminer.example"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?com/rapidminer/example/FastExample2SparseTransform.html" target="_top"><B>FRAMES</B></A> <A HREF="FastExample2SparseTransform.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 | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <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.example</FONT><BR>Class FastExample2SparseTransform</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.rapidminer.example.FastExample2SparseTransform</B></PRE><HR><DL><DT><PRE>public class <B>FastExample2SparseTransform</B><DT>extends java.lang.Object</DL></PRE><P>This class can be used for the efficient generation of sparse example formats. The constructor creates a mapping between example set and example table attribute indices which only need to be performed once. The sparse data can then be queried efficiently by using the methods <A HREF="../../../com/rapidminer/example/FastExample2SparseTransform.html#getNonDefaultAttributeIndices(com.rapidminer.example.Example)"><CODE>getNonDefaultAttributeIndices(Example)</CODE></A> and <A HREF="../../../com/rapidminer/example/FastExample2SparseTransform.html#getNonDefaultAttributeValues(com.rapidminer.example.Example)"><CODE>getNonDefaultAttributeValues(Example)</CODE></A>. Please note that this filter should be reinstatiated for new example sets. Furthermore, a gain in performance is only achieved for examples with underlying <A HREF="../../../com/rapidminer/example/table/SparseDataRow.html" title="interface in com.rapidminer.example.table"><CODE>SparseDataRow</CODE></A>s.<P><P><DL><DT><B>Version:</B></DT> <DD>$Id: FastExample2SparseTransform.java,v 2.2 2006/03/21 15:35:39 ingomierswa Exp $</DD><DT><B>Author:</B></DT> <DD>Julien Nioche, Ingo Mierswa</DD></DL><HR><P><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_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>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../com/rapidminer/example/FastExample2SparseTransform.html#FastExample2SparseTransform(com.rapidminer.example.ExampleSet)">FastExample2SparseTransform</A></B>(<A HREF="../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example">ExampleSet</A> es)</CODE><BR> Returns for a table giving the equivalence between the positions of the Attributes in the ExampleTable and the number of the regular Attributes in the ExampleSet.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_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>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/FastExample2SparseTransform.html#getNonDefaultAttributeIndices(com.rapidminer.example.Example)">getNonDefaultAttributeIndices</A></B>(<A HREF="../../../com/rapidminer/example/Example.html" title="class in com.rapidminer.example">Example</A> example)</CODE><BR> Returns a list with the indices of the regular Attributes with non-default values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/FastExample2SparseTransform.html#getNonDefaultAttributeValues(com.rapidminer.example.Example)">getNonDefaultAttributeValues</A></B>(<A HREF="../../../com/rapidminer/example/Example.html" title="class in com.rapidminer.example">Example</A> example)</CODE><BR> Returns an array of non-default values of the given example.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double[]</CODE></FONT></TD>⌨️ 快捷键说明
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