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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>Attribute (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.example.Attribute interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Attribute (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" 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<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/AbstractAttributes.html" title="class in com.rapidminer.example"><B>PREV CLASS</B></A> <A HREF="../../../com/rapidminer/example/AttributeDescription.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/Attribute.html" target="_top"><B>FRAMES</B></A> <A HREF="Attribute.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> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | CONSTR | <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>Interface Attribute</H2><DL><DT><B>All Superinterfaces:</B> <DD>java.lang.Cloneable, java.io.Serializable</DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../com/rapidminer/example/table/AbstractAttribute.html" title="class in com.rapidminer.example.table">AbstractAttribute</A>, <A HREF="../../../com/rapidminer/example/table/BinominalAttribute.html" title="class in com.rapidminer.example.table">BinominalAttribute</A>, <A HREF="../../../com/rapidminer/example/table/DateAttribute.html" title="class in com.rapidminer.example.table">DateAttribute</A>, <A HREF="../../../com/rapidminer/example/table/NominalAttribute.html" title="class in com.rapidminer.example.table">NominalAttribute</A>, <A HREF="../../../com/rapidminer/example/table/NumericalAttribute.html" title="class in com.rapidminer.example.table">NumericalAttribute</A>, <A HREF="../../../com/rapidminer/example/table/PolynominalAttribute.html" title="class in com.rapidminer.example.table">PolynominalAttribute</A>, <A HREF="../../../com/rapidminer/example/table/ViewAttribute.html" title="class in com.rapidminer.example.table">ViewAttribute</A></DD></DL><HR><DL><DT><PRE>public interface <B>Attribute</B><DT>extends java.lang.Cloneable, java.io.Serializable</DL></PRE><P>Attributes should hold all information about a single attribute. <ul> <li>the name</li> <li>the value type (nominal, numerical, ...)</li> <li>the block type (single value, time series...)</li> <li>a link to attribute statistics</li> <li>a link to a nominal value mapping (if applicable)</li> <li>a link to the information about how the attribute was generated</li> </ul><P><P><DL><DT><B>Version:</B></DT> <DD>$Id: Attribute.java,v 1.13 2008/05/28 10:52:03 ingomierswa Exp $</DD><DT><B>Author:</B></DT> <DD>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><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/example/Attribute.html#MISSING_NOMINAL_VALUE">MISSING_NOMINAL_VALUE</A></B></CODE><BR> Indicates a missing value for nominal values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#UNDEFINED_ATTRIBUTE_INDEX">UNDEFINED_ATTRIBUTE_INDEX</A></B></CODE><BR> Used to identify that this attribute is not part of any example table.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#VIEW_ATTRIBUTE_INDEX">VIEW_ATTRIBUTE_INDEX</A></B></CODE><BR> Used to identify view attributes</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> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#addTransformation(com.rapidminer.example.AttributeTransformation)">addTransformation</A></B>(<A HREF="../../../com/rapidminer/example/AttributeTransformation.html" title="interface in com.rapidminer.example">AttributeTransformation</A> transformation)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#clearTransformations()">clearTransformations</A></B>()</CODE><BR> Clear all transformations.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#clone()">clone</A></B>()</CODE><BR> Clones this attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object o)</CODE><BR> Returns true if the given object is an attribute with the same name and table index.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Iterator<<A HREF="../../../com/rapidminer/example/Statistics.html" title="interface in com.rapidminer.example">Statistics</A>></CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#getAllStatistics()">getAllStatistics</A></B>()</CODE><BR> Returns an iterator over all statistics objects available for this type of attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#getAsString(double, int, boolean)">getAsString</A></B>(double value, int digits, boolean quoteWhitespace)</CODE><BR> Returns a formatted string of the given value according to the attribute type.</TD></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/Attribute.html#getBlockType()">getBlockType</A></B>()</CODE><BR> Returns the block type of this attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../com/rapidminer/example/ConstructionDescription.html" title="class in com.rapidminer.example">ConstructionDescription</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#getConstruction()">getConstruction</A></B>()</CODE><BR> Returns the construction description.</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/Attribute.html#getDefault()">getDefault</A></B>()</CODE><BR> Returns the default value for this attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../com/rapidminer/example/AttributeTransformation.html" title="interface in com.rapidminer.example">AttributeTransformation</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#getLastTransformation()">getLastTransformation</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../com/rapidminer/example/table/NominalMapping.html" title="interface in com.rapidminer.example.table">NominalMapping</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#getMapping()">getMapping</A></B>()</CODE><BR> Returns the nominal mapping between nominal values and internal double representations.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#getName()">getName</A></B>()</CODE><BR> Returns the name of the attribute.</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/Attribute.html#getStatistics(java.lang.String)">getStatistics</A></B>(java.lang.String statisticsName)</CODE><BR> <B>Deprecated.</B> <I>Please use the method <A HREF="../../../com/rapidminer/example/ExampleSet.html#getStatistics(com.rapidminer.example.Attribute, java.lang.String)"><CODE>ExampleSet.getStatistics(Attribute, String)</CODE></A> instead.</I></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/Attribute.html#getStatistics(java.lang.String, java.lang.String)">getStatistics</A></B>(java.lang.String statisticsName, java.lang.String parameter)</CODE><BR> <B>Deprecated.</B> <I>Please use the method <A HREF="../../../com/rapidminer/example/ExampleSet.html#getStatistics(com.rapidminer.example.Attribute, java.lang.String, java.lang.String)"><CODE>ExampleSet.getStatistics(Attribute, String, String)</CODE></A> instead.</I></TD></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/Attribute.html#getTableIndex()">getTableIndex</A></B>()</CODE><BR> Returns the index in the example table.</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/Attribute.html#getValue(com.rapidminer.example.table.DataRow)">getValue</A></B>(<A HREF="../../../com/rapidminer/example/table/DataRow.html" title="class in com.rapidminer.example.table">DataRow</A> row)</CODE><BR> Returns the value for the column this attribute corresponds to in the given data row.</TD></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/Attribute.html#getValueType()">getValueType</A></B>()</CODE><BR> Returns the value type of this attribute.</TD></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/Attribute.html#hashCode()">hashCode</A></B>()</CODE><BR> Returns the hash code.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#isNominal()">isNominal</A></B>()</CODE><BR> Returns true if the attribute is nominal.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../com/rapidminer/example/Attribute.html#isNumerical()">isNumerical</A></B>()</CODE>⌨️ 快捷键说明
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