twoclassstats.html

来自「由java开发的软件包」· HTML 代码 · 共 634 行 · 第 1/2 页

</TABLE>

<A NAME="setTruePositive(double)"><!-- --></A><H3>
setTruePositive</H3>
<PRE>
public void <B>setTruePositive</B>(double&nbsp;tp)</PRE>
<DL>
<DD>Sets the number of positive instances predicted as positive
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setFalsePositive(double)"><!-- --></A><H3>
setFalsePositive</H3>
<PRE>
public void <B>setFalsePositive</B>(double&nbsp;fp)</PRE>
<DL>
<DD>Sets the number of negative instances predicted as positive
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setTrueNegative(double)"><!-- --></A><H3>
setTrueNegative</H3>
<PRE>
public void <B>setTrueNegative</B>(double&nbsp;tn)</PRE>
<DL>
<DD>Sets the number of negative instances predicted as negative
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setFalseNegative(double)"><!-- --></A><H3>
setFalseNegative</H3>
<PRE>
public void <B>setFalseNegative</B>(double&nbsp;fn)</PRE>
<DL>
<DD>Sets the number of positive instances predicted as negative
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getTruePositive()"><!-- --></A><H3>
getTruePositive</H3>
<PRE>
public double <B>getTruePositive</B>()</PRE>
<DL>
<DD>Gets the number of positive instances predicted as positive
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getFalsePositive()"><!-- --></A><H3>
getFalsePositive</H3>
<PRE>
public double <B>getFalsePositive</B>()</PRE>
<DL>
<DD>Gets the number of negative instances predicted as positive
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getTrueNegative()"><!-- --></A><H3>
getTrueNegative</H3>
<PRE>
public double <B>getTrueNegative</B>()</PRE>
<DL>
<DD>Gets the number of negative instances predicted as negative
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getFalseNegative()"><!-- --></A><H3>
getFalseNegative</H3>
<PRE>
public double <B>getFalseNegative</B>()</PRE>
<DL>
<DD>Gets the number of positive instances predicted as negative
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getTruePositiveRate()"><!-- --></A><H3>
getTruePositiveRate</H3>
<PRE>
public double <B>getTruePositiveRate</B>()</PRE>
<DL>
<DD>Calculate the true positive rate. 
 This is defined as<p>
 <pre>
 correctly classified positives
 ------------------------------
       total positives
 </pre>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the true positive rate</DL>
</DD>
</DL>
<HR>

<A NAME="getFalsePositiveRate()"><!-- --></A><H3>
getFalsePositiveRate</H3>
<PRE>
public double <B>getFalsePositiveRate</B>()</PRE>
<DL>
<DD>Calculate the false positive rate. 
 This is defined as<p>
 <pre>
 incorrectly classified negatives
 --------------------------------
        total negatives
 </pre>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the false positive rate</DL>
</DD>
</DL>
<HR>

<A NAME="getPrecision()"><!-- --></A><H3>
getPrecision</H3>
<PRE>
public double <B>getPrecision</B>()</PRE>
<DL>
<DD>Calculate the precision. 
 This is defined as<p>
 <pre>
 correctly classified positives
 ------------------------------
  total predicted as positive
 </pre>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the precision</DL>
</DD>
</DL>
<HR>

<A NAME="getRecall()"><!-- --></A><H3>
getRecall</H3>
<PRE>
public double <B>getRecall</B>()</PRE>
<DL>
<DD>Calculate the recall. 
 This is defined as<p>
 <pre>
 correctly classified positives
 ------------------------------
       total positives
 </pre><p>
 (Which is also the same as the truePositiveRate.)
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the recall</DL>
</DD>
</DL>
<HR>

<A NAME="getFMeasure()"><!-- --></A><H3>
getFMeasure</H3>
<PRE>
public double <B>getFMeasure</B>()</PRE>
<DL>
<DD>Calculate the F-Measure. 
 This is defined as<p>
 <pre>
 2 * recall * precision
 ----------------------
   recall + precision
 </pre>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the F-Measure</DL>
</DD>
</DL>
<HR>

<A NAME="getFallout()"><!-- --></A><H3>
getFallout</H3>
<PRE>
public double <B>getFallout</B>()</PRE>
<DL>
<DD>Calculate the fallout. 
 This is defined as<p>
 <pre>
 incorrectly classified negatives
 --------------------------------
   total predicted as positive
 </pre>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the fallout</DL>
</DD>
</DL>
<HR>

<A NAME="getConfusionMatrix()"><!-- --></A><H3>
getConfusionMatrix</H3>
<PRE>
public <A HREF="../../../weka/classifiers/evaluation/ConfusionMatrix.html" title="class in weka.classifiers.evaluation">ConfusionMatrix</A> <B>getConfusionMatrix</B>()</PRE>
<DL>
<DD>Generates a <code>ConfusionMatrix</code> representing the current
 two-class statistics, using class names "negative" and "positive".
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a <code>ConfusionMatrix</code>.</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a string containing the various performance measures
 for the current object
<P>
<DD><DL>
</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>


<!-- ======= START OF BOTTOM NAVBAR ====== -->
<A NAME="navbar_bottom"><!-- --></A>
<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_bottom_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>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../Tutorial.pdf"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="http://www.cs.waikato.ac.nz/ml/weka/index.html"><FONT CLASS="NavBarFont1"><B>Weka's home</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;<A HREF="../../../weka/classifiers/evaluation/ThresholdCurve.html" title="class in weka.classifiers.evaluation"><B>PREV CLASS</B></A>&nbsp;
&nbsp;NEXT CLASS</FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="TwoClassStats.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
&nbsp;<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:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL:&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->

<HR>

</BODY>
</HTML>