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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 10:31:48 CDT 2002 --><TITLE>: Package weka.filters</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="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD 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FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><H2>Package weka.filters</H2><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AbstractTimeSeriesFilter.html">AbstractTimeSeriesFilter</A></B></TD><TD>An abstract instance filter that assumes instances form time-series data and performs some merging of attribute values in the current instance with attribute attribute values of some previous (or future) instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AddFilter.html">AddFilter</A></B></TD><TD>An instance filter that adds a new attribute to the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AllFilter.html">AllFilter</A></B></TD><TD>A simple instance filter that passes all instances directly through.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AttributeExpressionFilter.html">AttributeExpressionFilter</A></B></TD><TD>Applys a mathematical expression involving attributes and numeric constants to a dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AttributeFilter.html">AttributeFilter</A></B></TD><TD>An instance filter that deletes a range of attributes from the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AttributeSelectionFilter.html">AttributeSelectionFilter</A></B></TD><TD>Filter for doing attribute selection.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AttributeTypeFilter.html">AttributeTypeFilter</A></B></TD><TD>An instance filter that deletes all attributes of a specified type from the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="CopyAttributesFilter.html">CopyAttributesFilter</A></B></TD><TD>An instance filter that copies a range of attributes in the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DiscretizeFilter.html">DiscretizeFilter</A></B></TD><TD>An instance filter that discretizes a range of numeric attributes in the dataset into nominal attributes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="EmptyAttributeFilter.html">EmptyAttributeFilter</A></B></TD><TD>Removes all attributes that do not contain more than one distinct value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Filter.html">Filter</A></B></TD><TD>An abstract class for instance filters: objects that take instances as input, carry out some transformation on the instance and then output the instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="FirstOrderFilter.html">FirstOrderFilter</A></B></TD><TD>This instance filter takes a range of N numeric attributes and replaces them with N-1 numeric attributes, the values of which are the difference between consecutive attribute values from the original instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="InstanceFilter.html">InstanceFilter</A></B></TD><TD>Filters instances according to the value of an attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="MakeIndicatorFilter.html">MakeIndicatorFilter</A></B></TD><TD>Creates a new dataset with a boolean attribute replacing a nominal attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="MergeTwoValuesFilter.html">MergeTwoValuesFilter</A></B></TD><TD>Merges two values of a nominal attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="NominalToBinaryFilter.html">NominalToBinaryFilter</A></B></TD><TD>Converts all nominal attributes into binary numeric attributes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="NonSparseToSparseFilter.html">NonSparseToSparseFilter</A></B></TD><TD>A filter that converts all incoming instances into sparse format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="NormalizationFilter.html">NormalizationFilter</A></B></TD><TD>Normalizes all numeric values in the given dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="NullFilter.html">NullFilter</A></B></TD><TD>A simple instance filter that allows no instances to pass through.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="NumericToBinaryFilter.html">NumericToBinaryFilter</A></B></TD><TD>Converts all numeric attributes into binary attributes (apart from the class attribute): if the value of the numeric attribute is exactly zero, the value of the new attribute will be zero.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="NumericTransformFilter.html">NumericTransformFilter</A></B></TD><TD>Transforms numeric attributes using a given transformation method.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="ObfuscateFilter.html">ObfuscateFilter</A></B></TD><TD>A simple instance filter that renames the relation, all attribute names and all nominal (and string) attribute values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="RandomizeFilter.html">RandomizeFilter</A></B></TD><TD>This filter randomly shuffles the order of instances passed through it.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="ReplaceMissingValuesFilter.html">ReplaceMissingValuesFilter</A></B></TD><TD>Replaces all missing values for nominal and numeric attributes in a dataset with the modes and means from the training data.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="ResampleFilter.html">ResampleFilter</A></B></TD><TD>Produces a random subsample of a dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SparseToNonSparseFilter.html">SparseToNonSparseFilter</A></B></TD><TD>A filter that converts all incoming sparse instances into non-sparse format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SplitDatasetFilter.html">SplitDatasetFilter</A></B></TD><TD>This filter takes a dataset and outputs a subset of it.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SpreadSubsampleFilter.html">SpreadSubsampleFilter</A></B></TD><TD>Produces a random subsample of a dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="StringToNominalFilter.html">StringToNominalFilter</A></B></TD><TD>Converts a string attribute (i.e.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SwapAttributeValuesFilter.html">SwapAttributeValuesFilter</A></B></TD><TD>Swaps two values of a nominal attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="TimeSeriesDeltaFilter.html">TimeSeriesDeltaFilter</A></B></TD><TD>An instance filter that assumes instances form time-series data and replaces attribute values in the current instance with the difference between the current value and the equivalent attribute attribute value of some previous (or future) instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="TimeSeriesTranslateFilter.html">TimeSeriesTranslateFilter</A></B></TD><TD>An instance filter that assumes instances form time-series data and replaces attribute values in the current instance with the equivalent attribute attribute values of some previous (or future) instance.</TD></TR></TABLE> <P><HR><!-- ========== START OF NAVBAR ========== 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