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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Wed Sep 04 10:31:49 CDT 2002 --><TITLE>: Class M5Utils</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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 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<A HREF="M5Utils.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | 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><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">weka.classifiers.m5</FONT><BR>Class M5Utils</H2><PRE>java.lang.Object | +--<B>weka.classifiers.m5.M5Utils</B></PRE><HR><DL><DT>public final class <B>M5Utils</B><DT>extends java.lang.Object</DL><P>Class for some small methods used in M5Java<P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#M5Utils()">M5Utils</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#absDev(int, weka.core.Instances)">absDev</A></B>(int attr, <A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Returns the absolute deviation value of the instances values of an attribute</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#correlation(double[], double[], int)">correlation</A></B>(double[] y1, double[] y2, int n)</CODE><BR> Returns the correlation coefficient of two double vectors</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.StringBuffer</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#deleteTrailingZerosAndDot(java.lang.StringBuffer)">deleteTrailingZerosAndDot</A></B>(java.lang.StringBuffer stringBuffer)</CODE><BR> Deletes the trailing zeros and decimal point in a stringBuffer</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="../../../weka/classifiers/m5/M5Utils.html#doubleToStringF(double, int, int)">doubleToStringF</A></B>(double value, int width, int afterDecimalPoint)</CODE><BR> Rounds a double and converts it into a formatted right-justified String.</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="../../../weka/classifiers/m5/M5Utils.html#doubleToStringG(double, int, int)">doubleToStringG</A></B>(double value, int width, int precision)</CODE><BR> Rounds a double and converts it into a formatted right-justified String.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#eqDouble(double, double)">eqDouble</A></B>(double a, double b)</CODE><BR> Tests if two double values are equal to each other</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#errorMsg(java.lang.String)">errorMsg</A></B>(java.lang.String err)</CODE><BR> Prints error message and exits</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#floorDouble(double)">floorDouble</A></B>(double value)</CODE><BR> Returns the largest (closest to positive infinity) long integer value that is not greater than the argument.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#hasEnumAttr(weka.core.Instances)">hasEnumAttr</A></B>(<A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Tests if enumerated attribute(s) exists in the instances</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#hasMissing(weka.core.Instances)">hasMissing</A></B>(<A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Tests if missing value(s) exists in the instances</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="../../../weka/classifiers/m5/M5Utils.html#headToString()">headToString</A></B>()</CODE><BR> Prints the head lines of the output</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#roundDouble(double)">roundDouble</A></B>(double value)</CODE><BR> Rounds a double</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="../../../weka/classifiers/m5/M5Utils.html#separatorToString()">separatorToString</A></B>()</CODE><BR> Prints sepearating line</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#smoothenValue(double, double, int, int)">smoothenValue</A></B>(double p, double q, int n, int k)</CODE><BR> Returns the smoothed values according to the smoothing formula (np+kq)/(n+k)</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#sqrSum(int, weka.core.Instances)">sqrSum</A></B>(int attr, <A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Returns the squared sum of the instances values of an attribute</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#stdDev(int, weka.core.Instances)">stdDev</A></B>(int attr, <A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Returns the standard deviation value of the instances values of an attribute</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#sum(int, weka.core.Instances)">sum</A></B>(int attr, <A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Returns the sum of the instances values of an attribute</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/m5/M5Utils.html#variance(int, weka.core.Instances)">variance</A></B>(int attr, <A HREF="../../../weka/core/Instances.html">Instances</A> inst)</CODE><BR> Returns the variance value of the instances values of an attribute</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.Object</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR 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