xybardataset.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

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<TD><CODE><A HREF="../../../org/jfree/data/XYDataset.html#getX(int, int)">getX</A>, <A HREF="../../../org/jfree/data/XYDataset.html#getY(int, int)">getY</A></CODE></TD>
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<TD><B>Methods inherited from interface org.jfree.data.<A HREF="../../../org/jfree/data/Dataset.html" title="interface in org.jfree.data">Dataset</A></B></TD>
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<TD><CODE><A HREF="../../../org/jfree/data/Dataset.html#addChangeListener(org.jfree.data.DatasetChangeListener)">addChangeListener</A>, <A HREF="../../../org/jfree/data/Dataset.html#getGroup()">getGroup</A>, <A HREF="../../../org/jfree/data/Dataset.html#removeChangeListener(org.jfree.data.DatasetChangeListener)">removeChangeListener</A>, <A HREF="../../../org/jfree/data/Dataset.html#setGroup(org.jfree.data.DatasetGroup)">setGroup</A></CODE></TD>
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<B>Constructor Detail</B></FONT></TD>
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<A NAME="XYBarDataset(org.jfree.data.XYDataset, double)"><!-- --></A><H3>
XYBarDataset</H3>
<PRE>
public <B>XYBarDataset</B>(<A HREF="../../../org/jfree/data/XYDataset.html" title="interface in org.jfree.data">XYDataset</A>&nbsp;underlying,
                    double&nbsp;barWidth)</PRE>
<DL>
<DD>Creates a new dataset.
<P>
<DT><B>Parameters:</B><DD><CODE>underlying</CODE> - the underlying dataset.<DD><CODE>barWidth</CODE> - the width of the bars.</DL>

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<B>Method Detail</B></FONT></TD>
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<A NAME="getSeriesCount()"><!-- --></A><H3>
getSeriesCount</H3>
<PRE>
public int <B>getSeriesCount</B>()</PRE>
<DL>
<DD>Returns the number of series in the dataset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/SeriesDataset.html#getSeriesCount()">getSeriesCount</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/SeriesDataset.html" title="interface in org.jfree.data">SeriesDataset</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/AbstractSeriesDataset.html#getSeriesCount()">getSeriesCount</A></CODE> in class <CODE><A HREF="../../../org/jfree/data/AbstractSeriesDataset.html" title="class in org.jfree.data">AbstractSeriesDataset</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The series count.</DL>
</DD>
</DL>
<HR>

<A NAME="getSeriesName(int)"><!-- --></A><H3>
getSeriesName</H3>
<PRE>
public java.lang.String <B>getSeriesName</B>(int&nbsp;series)</PRE>
<DL>
<DD>Returns the name of a series.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/SeriesDataset.html#getSeriesName(int)">getSeriesName</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/SeriesDataset.html" title="interface in org.jfree.data">SeriesDataset</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/AbstractSeriesDataset.html#getSeriesName(int)">getSeriesName</A></CODE> in class <CODE><A HREF="../../../org/jfree/data/AbstractSeriesDataset.html" title="class in org.jfree.data">AbstractSeriesDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).
<DT><B>Returns:</B><DD>The series name.</DL>
</DD>
</DL>
<HR>

<A NAME="getItemCount(int)"><!-- --></A><H3>
getItemCount</H3>
<PRE>
public int <B>getItemCount</B>(int&nbsp;series)</PRE>
<DL>
<DD>Returns the number of items in a series.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/XYDataset.html#getItemCount(int)">getItemCount</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/XYDataset.html" title="interface in org.jfree.data">XYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).
<DT><B>Returns:</B><DD>The item count.</DL>
</DD>
</DL>
<HR>

<A NAME="getXValue(int, int)"><!-- --></A><H3>
getXValue</H3>
<PRE>
public java.lang.Number <B>getXValue</B>(int&nbsp;series,
                                  int&nbsp;item)</PRE>
<DL>
<DD>Returns the x-value for an item within a series.  The x-values may or may not be returned
 in ascending order, that is up to the class implementing the interface.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/XYDataset.html#getXValue(int, int)">getXValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/XYDataset.html" title="interface in org.jfree.data">XYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).<DD><CODE>item</CODE> - the item (zero-based index).
<DT><B>Returns:</B><DD>The x-value.</DL>
</DD>
</DL>
<HR>

<A NAME="getYValue(int, int)"><!-- --></A><H3>
getYValue</H3>
<PRE>
public java.lang.Number <B>getYValue</B>(int&nbsp;series,
                                  int&nbsp;item)</PRE>
<DL>
<DD>Returns the y-value for an item within a series.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/XYDataset.html#getYValue(int, int)">getYValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/XYDataset.html" title="interface in org.jfree.data">XYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).<DD><CODE>item</CODE> - the item (zero-based index).
<DT><B>Returns:</B><DD>The y-value (possibly <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="getStartXValue(int, int)"><!-- --></A><H3>
getStartXValue</H3>
<PRE>
public java.lang.Number <B>getStartXValue</B>(int&nbsp;series,
                                       int&nbsp;item)</PRE>
<DL>
<DD>Returns the starting X value for the specified series and item.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html#getStartXValue(int, int)">getStartXValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html" title="interface in org.jfree.data">IntervalXYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).<DD><CODE>item</CODE> - the item within a series (zero-based index).
<DT><B>Returns:</B><DD>The starting X value for the specified series and item.</DL>
</DD>
</DL>
<HR>

<A NAME="getEndXValue(int, int)"><!-- --></A><H3>
getEndXValue</H3>
<PRE>
public java.lang.Number <B>getEndXValue</B>(int&nbsp;series,
                                     int&nbsp;item)</PRE>
<DL>
<DD>Returns the ending X value for the specified series and item.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html#getEndXValue(int, int)">getEndXValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html" title="interface in org.jfree.data">IntervalXYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).<DD><CODE>item</CODE> - the item within a series (zero-based index).
<DT><B>Returns:</B><DD>The ending X value for the specified series and item.</DL>
</DD>
</DL>
<HR>

<A NAME="getStartYValue(int, int)"><!-- --></A><H3>
getStartYValue</H3>
<PRE>
public java.lang.Number <B>getStartYValue</B>(int&nbsp;series,
                                       int&nbsp;item)</PRE>
<DL>
<DD>Returns the starting Y value for the specified series and item.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html#getStartYValue(int, int)">getStartYValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html" title="interface in org.jfree.data">IntervalXYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).<DD><CODE>item</CODE> - the item within a series (zero-based index).
<DT><B>Returns:</B><DD>The starting Y value for the specified series and item.</DL>
</DD>
</DL>
<HR>

<A NAME="getEndYValue(int, int)"><!-- --></A><H3>
getEndYValue</H3>
<PRE>
public java.lang.Number <B>getEndYValue</B>(int&nbsp;series,
                                     int&nbsp;item)</PRE>
<DL>
<DD>Returns the ending Y value for the specified series and item.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html#getEndYValue(int, int)">getEndYValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/IntervalXYDataset.html" title="interface in org.jfree.data">IntervalXYDataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series (zero-based index).<DD><CODE>item</CODE> - the item within a series (zero-based index).
<DT><B>Returns:</B><DD>The ending Y value for the specified series and item.</DL>
</DD>
</DL>
<HR>

<A NAME="datasetChanged(org.jfree.data.DatasetChangeEvent)"><!-- --></A><H3>
datasetChanged</H3>
<PRE>
public void <B>datasetChanged</B>(<A HREF="../../../org/jfree/data/DatasetChangeEvent.html" title="class in org.jfree.data">DatasetChangeEvent</A>&nbsp;event)</PRE>
<DL>
<DD>Receives notification of an dataset change event.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/DatasetChangeListener.html#datasetChanged(org.jfree.data.DatasetChangeEvent)">datasetChanged</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/DatasetChangeListener.html" title="interface in org.jfree.data">DatasetChangeListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>event</CODE> - information about the event.</DL>
</DD>
</DL>
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