numerictransformfilter.html

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<B>Method Detail</B></FONT></TD>
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<A NAME="setInputFormat(weka.core.Instances)"><!-- --></A><H3>
setInputFormat</H3>
<PRE>
public boolean <B>setInputFormat</B>(<A HREF="../../weka/core/Instances.html">Instances</A>&nbsp;instanceInfo)
                       throws java.lang.Exception</PRE>
<DL>
<DD>Sets the format of the input instances.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/filters/Filter.html#setInputFormat(weka.core.Instances)">setInputFormat</A></CODE> in class <CODE><A HREF="../../weka/filters/Filter.html">Filter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instanceInfo</CODE> - an Instances object containing the input 
 instance structure (any instances contained in the object are 
 ignored - only the structure is required).<DT><B>Returns:</B><DD>true if the outputFormat may be collected immediately<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if the input format can't be set 
 successfully</DL>
</DD>
</DL>
<HR>

<A NAME="input(weka.core.Instance)"><!-- --></A><H3>
input</H3>
<PRE>
public boolean <B>input</B>(<A HREF="../../weka/core/Instance.html">Instance</A>&nbsp;instance)
              throws java.lang.Exception</PRE>
<DL>
<DD>Input an instance for filtering. The instance is processed
 and made available for output immediately.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/filters/Filter.html#input(weka.core.Instance)">input</A></CODE> in class <CODE><A HREF="../../weka/filters/Filter.html">Filter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instance</CODE> - the input instance<DT><B>Returns:</B><DD>true if the filtered instance may now be
 collected with output().<DT><B>Throws:</B><DD><CODE>java.lang.IllegalStateException</CODE> - if no input format has been set.<DD><CODE>java.lang.reflect.InvocationTargetException</CODE> - if there is a problem applying
 the configured transform method.</DL>
</DD>
</DL>
<HR>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Returns an enumeration describing the available options<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#listOptions()">listOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an enumeration of all the available options</DL>
</DD>
</DL>
<HR>

<A NAME="setOptions(java.lang.String[])"><!-- --></A><H3>
setOptions</H3>
<PRE>
public void <B>setOptions</B>(java.lang.String[]&nbsp;options)
                throws java.lang.Exception</PRE>
<DL>
<DD>Parses the options for this object. Valid options are: <p>

 -R index1,index2-index4,...<br>
 Specify list of columns to transform. First and last are valid indexes.
 (default none). Non-numeric columns are skipped.<p>

 -V<br>
 Invert matching sense.<p>

 -C string <br>
 Name of the class containing the method used for transformation.
 (default java.lang.Math) <p>

 -M string <br>
 Name of the method used for the transformation.
 (default abs) <p><DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#setOptions(java.lang.String[])">setOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>options</CODE> - the list of options as an array of strings<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an option is not supported</DL>
</DD>
</DL>
<HR>

<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.lang.String[] <B>getOptions</B>()</PRE>
<DL>
<DD>Gets the current settings of the filter.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#getOptions()">getOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an array of strings suitable for passing to setOptions</DL>
</DD>
</DL>
<HR>

<A NAME="getClassName()"><!-- --></A><H3>
getClassName</H3>
<PRE>
public java.lang.String <B>getClassName</B>()</PRE>
<DL>
<DD>Get the class containing the transformation method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>string describing the class</DL>
</DD>
</DL>
<HR>

<A NAME="setClassName(java.lang.String)"><!-- --></A><H3>
setClassName</H3>
<PRE>
public void <B>setClassName</B>(java.lang.String&nbsp;name)
                  throws java.lang.ClassNotFoundException</PRE>
<DL>
<DD>Sets the class containing the transformation method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the class<DT><B>Throws:</B><DD><CODE>java.lang.ClassNotFoundException</CODE> - if class can't be found</DL>
</DD>
</DL>
<HR>

<A NAME="getMethodName()"><!-- --></A><H3>
getMethodName</H3>
<PRE>
public java.lang.String <B>getMethodName</B>()</PRE>
<DL>
<DD>Get the transformation method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>string describing the transformation method.</DL>
</DD>
</DL>
<HR>

<A NAME="setMethodName(java.lang.String)"><!-- --></A><H3>
setMethodName</H3>
<PRE>
public void <B>setMethodName</B>(java.lang.String&nbsp;name)
                   throws java.lang.NoSuchMethodException</PRE>
<DL>
<DD>Set the transformation method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the method<DT><B>Throws:</B><DD><CODE>java.lang.NoSuchMethodException</CODE> - if method can't be found in class</DL>
</DD>
</DL>
<HR>

<A NAME="getInvertSelection()"><!-- --></A><H3>
getInvertSelection</H3>
<PRE>
public boolean <B>getInvertSelection</B>()</PRE>
<DL>
<DD>Get whether the supplied columns are to be transformed or not<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if the supplied columns will be kept</DL>
</DD>
</DL>
<HR>

<A NAME="setInvertSelection(boolean)"><!-- --></A><H3>
setInvertSelection</H3>
<PRE>
public void <B>setInvertSelection</B>(boolean&nbsp;invert)</PRE>
<DL>
<DD>Set whether selected columns should be transformed or not.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>invert</CODE> - the new invert setting</DL>
</DD>
</DL>
<HR>

<A NAME="attributeIndicesTipText()"><!-- --></A><H3>
attributeIndicesTipText</H3>
<PRE>
public java.lang.String <B>attributeIndicesTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>tip text for this property suitable for
 displaying in the explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="getAttributeIndices()"><!-- --></A><H3>
getAttributeIndices</H3>
<PRE>
public java.lang.String <B>getAttributeIndices</B>()</PRE>
<DL>
<DD>Get the current range selection<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a string containing a comma separated list of ranges</DL>
</DD>
</DL>
<HR>

<A NAME="setAttributeIndices(java.lang.String)"><!-- --></A><H3>
setAttributeIndices</H3>
<PRE>
public void <B>setAttributeIndices</B>(java.lang.String&nbsp;rangeList)</PRE>
<DL>
<DD>Set which attributes are to be transformed (or kept if invert is true).<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rangeList</CODE> - a string representing the list of attributes. Since
 the string will typically come from a user, attributes are indexed from
 1. <br> eg: 
 first-3,5,6-last<DT><B>Throws:</B><DD><CODE>InvalidArgumentException</CODE> - if an invalid range list is supplied</DL>
</DD>
</DL>
<HR>

<A NAME="setAttributeIndicesArray(int[])"><!-- --></A><H3>
setAttributeIndicesArray</H3>
<PRE>
public void <B>setAttributeIndicesArray</B>(int[]&nbsp;attributes)</PRE>
<DL>
<DD>Set which attributes are to be transformed (or kept if invert is true)<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attributes</CODE> - an array containing indexes of attributes to select.
 Since the array will typically come from a program, attributes are indexed
 from 0.<DT><B>Throws:</B><DD><CODE>InvalidArgumentException</CODE> - if an invalid set of ranges is supplied</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;argv)</PRE>
<DL>
<DD>Main method for testing this class.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>argv</CODE> - should contain arguments to the filter: use -h for help</DL>
</DD>
</DL>
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