histogramdataset.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

<DD>Returns the name for 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 index (zero based).
<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 data items for 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 index (zero based).
<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 a bin. 
 <p>
 This value won't be used for plotting histograms, since the renderer will ignore it.
 But other renderers can use it (for example, you could use the dataset to create a line
 chart).
<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 index (zero based).<DD><CODE>item</CODE> - the item index (zero based).
<DT><B>Returns:</B><DD>The start 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 a bin (calculated to take into account the histogram type).
<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 index (zero based).<DD><CODE>item</CODE> - the item index (zero based).
<DT><B>Returns:</B><DD>The y-value.</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 start value for a bin.
<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 index (zero based).<DD><CODE>item</CODE> - the item index (zero based).
<DT><B>Returns:</B><DD>The start value.</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 end value for a bin.
<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 index (zero based).<DD><CODE>item</CODE> - the item index (zero based).
<DT><B>Returns:</B><DD>The end value.</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 start y-value for a bin (which is the same as the y-value, this method 
 exists only to support the general form of the <A HREF="../../../../org/jfree/data/IntervalXYDataset.html" title="interface in org.jfree.data"><CODE>IntervalXYDataset</CODE></A> interface).
<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 index (zero based).<DD><CODE>item</CODE> - the item index (zero based).
<DT><B>Returns:</B><DD>The y-value.</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 end y-value for a bin (which is the same as the y-value, this method 
 exists only to support the general form of the <A HREF="../../../../org/jfree/data/IntervalXYDataset.html" title="interface in org.jfree.data"><CODE>IntervalXYDataset</CODE></A> interface).
<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 index (zero based).<DD><CODE>item</CODE> - the item index (zero based).
<DT><B>Returns:</B><DD>The Y value.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;obj)</PRE>
<DL>
<DD>Tests this dataset for equality with an arbitrary object.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object to test against (<code>null</code> permitted).
<DT><B>Returns:</B><DD>A boolean.</DL>
</DD>
</DL>
<HR>

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <B>clone</B>()
                       throws java.lang.CloneNotSupportedException</PRE>
<DL>
<DD>Returns a clone of the dataset.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/data/AbstractDataset.html#clone()">clone</A></CODE> in class <CODE><A HREF="../../../../org/jfree/data/AbstractDataset.html" title="class in org.jfree.data">AbstractDataset</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>A clone of the dataset.
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE> - if the object cannot be cloned.</DL>
</DD>
</DL>
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