estimatorutils.html

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<A NAME="EstimatorUtils()"><!-- --></A><H3>
EstimatorUtils</H3>
<PRE>
public <B>EstimatorUtils</B>()</PRE>
<DL>
</DL>

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<A NAME="findMinDistance(weka.core.Instances, int)"><!-- --></A><H3>
findMinDistance</H3>
<PRE>
public static double <B>findMinDistance</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;inst,
                                     int&nbsp;attrIndex)</PRE>
<DL>
<DD>Find the minimum distance between values
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inst</CODE> - sorted instances, sorted<DD><CODE>attrIndex</CODE> - index of the attribute, they are sorted after
<DT><B>Returns:</B><DD>the minimal distance</DL>
</DD>
</DL>
<HR>

<A NAME="getMinMax(weka.core.Instances, int, double[])"><!-- --></A><H3>
getMinMax</H3>
<PRE>
public static int <B>getMinMax</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;inst,
                            int&nbsp;attrIndex,
                            double[]&nbsp;minMax)
                     throws java.lang.Exception</PRE>
<DL>
<DD>Find the minimum and the maximum of the attribute and return it in 
 the last parameter..
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inst</CODE> - instances used to build the estimator<DD><CODE>attrIndex</CODE> - index of the attribute<DD><CODE>minMax</CODE> - the array to return minimum and maximum in
<DT><B>Returns:</B><DD>number of not missing values
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if parameter minMax wasn't initialized properly</DL>
</DD>
</DL>
<HR>

<A NAME="getInstancesFromClass(weka.core.Instances, int, int, double, weka.core.Instances)"><!-- --></A><H3>
getInstancesFromClass</H3>
<PRE>
public static java.util.Vector <B>getInstancesFromClass</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                                                     int&nbsp;attrIndex,
                                                     int&nbsp;classIndex,
                                                     double&nbsp;classValue,
                                                     <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;workData)</PRE>
<DL>
<DD>Returns a dataset that contains all instances of a certain class value.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - dataset to select the instances from<DD><CODE>attrIndex</CODE> - index of the relevant attribute<DD><CODE>classIndex</CODE> - index of the class attribute<DD><CODE>classValue</CODE> - the relevant class value
<DT><B>Returns:</B><DD>a dataset with only</DL>
</DD>
</DL>
<HR>

<A NAME="getInstancesFromClass(weka.core.Instances, int, double)"><!-- --></A><H3>
getInstancesFromClass</H3>
<PRE>
public static <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getInstancesFromClass</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                                              int&nbsp;classIndex,
                                              double&nbsp;classValue)</PRE>
<DL>
<DD>Returns a dataset that contains of all instances of a certain class value.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - dataset to select the instances from<DD><CODE>classIndex</CODE> - index of the class attribute<DD><CODE>classValue</CODE> - the class value
<DT><B>Returns:</B><DD>a dataset with only instances of one class value</DL>
</DD>
</DL>
<HR>

<A NAME="writeCurve(java.lang.String, weka.estimators.Estimator, double, double, int)"><!-- --></A><H3>
writeCurve</H3>
<PRE>
public static void <B>writeCurve</B>(java.lang.String&nbsp;f,
                              <A HREF="../../weka/estimators/Estimator.html" title="class in weka.estimators">Estimator</A>&nbsp;est,
                              double&nbsp;min,
                              double&nbsp;max,
                              int&nbsp;numPoints)
                       throws java.lang.Exception</PRE>
<DL>
<DD>Output of an n points of a density curve.
 Filename is parameter f + ".curv".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>f</CODE> - string to build filename<DD><CODE>est</CODE> - <DD><CODE>min</CODE> - <DD><CODE>max</CODE> - <DD><CODE>numPoints</CODE> - 
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="writeCurve(java.lang.String, weka.estimators.Estimator, weka.estimators.Estimator, double, double, double, int)"><!-- --></A><H3>
writeCurve</H3>
<PRE>
public static void <B>writeCurve</B>(java.lang.String&nbsp;f,
                              <A HREF="../../weka/estimators/Estimator.html" title="class in weka.estimators">Estimator</A>&nbsp;est,
                              <A HREF="../../weka/estimators/Estimator.html" title="class in weka.estimators">Estimator</A>&nbsp;classEst,
                              double&nbsp;classIndex,
                              double&nbsp;min,
                              double&nbsp;max,
                              int&nbsp;numPoints)
                       throws java.lang.Exception</PRE>
<DL>
<DD>Output of an n points of a density curve.
 Filename is parameter f + ".curv".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>f</CODE> - string to build filename<DD><CODE>est</CODE> - <DD><CODE>classEst</CODE> - <DD><CODE>classIndex</CODE> - <DD><CODE>min</CODE> - <DD><CODE>max</CODE> - <DD><CODE>numPoints</CODE> - 
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="getInstancesFromValue(weka.core.Instances, int, double)"><!-- --></A><H3>
getInstancesFromValue</H3>
<PRE>
public static <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getInstancesFromValue</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                                              int&nbsp;index,
                                              double&nbsp;v)</PRE>
<DL>
<DD>Returns a dataset that contains of all instances of a certain value
 for the given attribute.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - dataset to select the instances from<DD><CODE>index</CODE> - the index of the attribute<DD><CODE>v</CODE> - the value
<DT><B>Returns:</B><DD>a subdataset with only instances of one value for the attribute</DL>
</DD>
</DL>
<HR>

<A NAME="cutpointsToString(double[], boolean[])"><!-- --></A><H3>
cutpointsToString</H3>
<PRE>
public static java.lang.String <B>cutpointsToString</B>(double[]&nbsp;cutPoints,
                                                 boolean[]&nbsp;cutAndLeft)</PRE>
<DL>
<DD>Returns a string representing the cutpoints
<P>
<DD><DL>
</DL>
</DD>
</DL>
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