arffloader.arffreader.html

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<A NAME="ArffLoader.ArffReader(java.io.Reader)"><!-- --></A><H3>
ArffLoader.ArffReader</H3>
<PRE>
public <B>ArffLoader.ArffReader</B>(java.io.Reader&nbsp;reader)
                      throws java.io.IOException</PRE>
<DL>
<DD>Reads the data completely from the reader. The data can be accessed
 via the <code>getData()</code> method.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the reader to use
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if something goes wrong<DT><B>See Also:</B><DD><A HREF="../../../weka/core/converters/ArffLoader.ArffReader.html#getData()"><CODE>getData()</CODE></A></DL>
</DL>
<HR>

<A NAME="ArffLoader.ArffReader(java.io.Reader, int)"><!-- --></A><H3>
ArffLoader.ArffReader</H3>
<PRE>
public <B>ArffLoader.ArffReader</B>(java.io.Reader&nbsp;reader,
                             int&nbsp;capacity)
                      throws java.io.IOException</PRE>
<DL>
<DD>Reads only the header and reserves the specified space for instances.
 Further instances can be read via <code>readInstance()</code>.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the reader to use<DD><CODE>capacity</CODE> - the capacity of the new dataset
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if something goes wrong
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if capacity is negative<DT><B>See Also:</B><DD><A HREF="../../../weka/core/converters/ArffLoader.ArffReader.html#getStructure()"><CODE>getStructure()</CODE></A>, 
<A HREF="../../../weka/core/converters/ArffLoader.ArffReader.html#readInstance(weka.core.Instances)"><CODE>readInstance(Instances)</CODE></A></DL>
</DL>
<HR>

<A NAME="ArffLoader.ArffReader(java.io.Reader, weka.core.Instances, int)"><!-- --></A><H3>
ArffLoader.ArffReader</H3>
<PRE>
public <B>ArffLoader.ArffReader</B>(java.io.Reader&nbsp;reader,
                             <A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;template,
                             int&nbsp;lines)
                      throws java.io.IOException</PRE>
<DL>
<DD>Reads the data without header according to the specified template.
 The data can be accessed via the <code>getData()</code> method.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the reader to use<DD><CODE>template</CODE> - the template header<DD><CODE>lines</CODE> - the lines read so far
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if something goes wrong<DT><B>See Also:</B><DD><A HREF="../../../weka/core/converters/ArffLoader.ArffReader.html#getData()"><CODE>getData()</CODE></A></DL>
</DL>
<HR>

<A NAME="ArffLoader.ArffReader(java.io.Reader, weka.core.Instances, int, int)"><!-- --></A><H3>
ArffLoader.ArffReader</H3>
<PRE>
public <B>ArffLoader.ArffReader</B>(java.io.Reader&nbsp;reader,
                             <A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;template,
                             int&nbsp;lines,
                             int&nbsp;capacity)
                      throws java.io.IOException</PRE>
<DL>
<DD>Initializes the reader without reading the header according to the 
 specified template. The data must be read via the 
 <code>readInstance()</code> method.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the reader to use<DD><CODE>template</CODE> - the template header<DD><CODE>lines</CODE> - the lines read so far<DD><CODE>capacity</CODE> - the capacity of the new dataset
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if something goes wrong<DT><B>See Also:</B><DD><A HREF="../../../weka/core/converters/ArffLoader.ArffReader.html#getData()"><CODE>getData()</CODE></A></DL>
</DL>

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<A NAME="getLineNo()"><!-- --></A><H3>
getLineNo</H3>
<PRE>
public int <B>getLineNo</B>()</PRE>
<DL>
<DD>returns the current line number
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the current line number</DL>
</DD>
</DL>
<HR>

<A NAME="readInstance(weka.core.Instances)"><!-- --></A><H3>
readInstance</H3>
<PRE>
public <A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A> <B>readInstance</B>(<A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;structure)
                      throws java.io.IOException</PRE>
<DL>
<DD>Reads a single instance using the tokenizer and returns it.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>structure</CODE> - the dataset header information, will get updated 
                                in case of string or relational attributes
<DT><B>Returns:</B><DD>null if end of file has been reached
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if the information is not read 
 successfully</DL>
</DD>
</DL>
<HR>

<A NAME="readInstance(weka.core.Instances, boolean)"><!-- --></A><H3>
readInstance</H3>
<PRE>
public <A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A> <B>readInstance</B>(<A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;structure,
                             boolean&nbsp;flag)
                      throws java.io.IOException</PRE>
<DL>
<DD>Reads a single instance using the tokenizer and returns it.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>structure</CODE> - the dataset header information, will get updated 
                                in case of string or relational attributes<DD><CODE>flag</CODE> - if method should test for carriage return after 
                                each instance
<DT><B>Returns:</B><DD>null if end of file has been reached
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if the information is not read 
 successfully</DL>
</DD>
</DL>
<HR>

<A NAME="getStructure()"><!-- --></A><H3>
getStructure</H3>
<PRE>
public <A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getStructure</B>()</PRE>
<DL>
<DD>Returns the header format
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the header format</DL>
</DD>
</DL>
<HR>

<A NAME="getData()"><!-- --></A><H3>
getData</H3>
<PRE>
public <A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getData</B>()</PRE>
<DL>
<DD>Returns the data that was read
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

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

<A NAME="getRevision()"><!-- --></A><H3>
getRevision</H3>
<PRE>
public java.lang.String <B>getRevision</B>()</PRE>
<DL>
<DD>Returns the revision string.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/RevisionHandler.html#getRevision()">getRevision</A></CODE> in interface <CODE><A HREF="../../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the revision</DL>
</DD>
</DL>
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