xyseries.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

 <P>
 The unusual pairing of parameter types is to make it easier to add null y-values.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x value.<DD><CODE>y</CODE> - the y value (<code>null</code> permitted).<DD><CODE>notify</CODE> - a flag that controls whether or not a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> is sent to 
                all registered listeners.</DL>
</DD>
</DL>
<HR>

<A NAME="add(java.lang.Number, java.lang.Number)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(java.lang.Number&nbsp;x,
                java.lang.Number&nbsp;y)</PRE>
<DL>
<DD>Adds new data to the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all registered 
 listeners.
 <P>
 Throws an exception if the x-value is a duplicate AND the allowDuplicateXValues flag is
 false.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x-value (<code>null</code> not permitted).<DD><CODE>y</CODE> - the y-value (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="add(java.lang.Number, java.lang.Number, boolean)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(java.lang.Number&nbsp;x,
                java.lang.Number&nbsp;y,
                boolean&nbsp;notify)</PRE>
<DL>
<DD>Adds new data to the series and, if requested, sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all
 registered listeners.
 <P>
 Throws an exception if the x-value is a duplicate AND the allowDuplicateXValues flag is
 false.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x-value (<code>null</code> not permitted).<DD><CODE>y</CODE> - the y-value (<code>null</code> permitted).<DD><CODE>notify</CODE> - a flag the controls whether or not a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> is sent to 
                all registered listeners.</DL>
</DD>
</DL>
<HR>

<A NAME="delete(int, int)"><!-- --></A><H3>
delete</H3>
<PRE>
public void <B>delete</B>(int&nbsp;start,
                   int&nbsp;end)</PRE>
<DL>
<DD>Deletes a range of items from the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all 
 registered listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>start</CODE> - the start index (zero-based).<DD><CODE>end</CODE> - the end index (zero-based).</DL>
</DD>
</DL>
<HR>

<A NAME="remove(int)"><!-- --></A><H3>
remove</H3>
<PRE>
public <A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A> <B>remove</B>(int&nbsp;index)</PRE>
<DL>
<DD>Removes the item at the specified index.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index.
<DT><B>Returns:</B><DD>the item removed.</DL>
</DD>
</DL>
<HR>

<A NAME="remove(java.lang.Number)"><!-- --></A><H3>
remove</H3>
<PRE>
public <A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A> <B>remove</B>(java.lang.Number&nbsp;x)</PRE>
<DL>
<DD>Removes the item(s) with the specified x-value.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x-value.
<DT><B>Returns:</B><DD>the item removed.</DL>
</DD>
</DL>
<HR>

<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Removes all data items from the series.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getDataItem(int)"><!-- --></A><H3>
getDataItem</H3>
<PRE>
public <A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A> <B>getDataItem</B>(int&nbsp;index)</PRE>
<DL>
<DD>Return the data item with the specified index.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index.
<DT><B>Returns:</B><DD>the data item with the specified index.</DL>
</DD>
</DL>
<HR>

<A NAME="getXValue(int)"><!-- --></A><H3>
getXValue</H3>
<PRE>
public java.lang.Number <B>getXValue</B>(int&nbsp;index)</PRE>
<DL>
<DD>Returns the x-value at the specified index.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index (zero-based).
<DT><B>Returns:</B><DD>the x-value (never <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="getYValue(int)"><!-- --></A><H3>
getYValue</H3>
<PRE>
public java.lang.Number <B>getYValue</B>(int&nbsp;index)</PRE>
<DL>
<DD>Returns the y-value at the specified index.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index (zero-based).
<DT><B>Returns:</B><DD>the y-value (possibly <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="update(int, java.lang.Number)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(int&nbsp;index,
                   java.lang.Number&nbsp;y)</PRE>
<DL>
<DD>Updates the value of an item in the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all
 registered listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the item (zero based index).<DD><CODE>y</CODE> - the new value (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="indexOf(java.lang.Number)"><!-- --></A><H3>
indexOf</H3>
<PRE>
public int <B>indexOf</B>(java.lang.Number&nbsp;x)</PRE>
<DL>
<DD>Returns the index of the item with the specified x-value. Note: if the series is not sorted
 in order of ascending x-values, the result is undefined.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x-value (<code>null</code> not permitted).
<DT><B>Returns:</B><DD>the index.</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 series.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/jfree/data/Series.html#clone()">clone</A></CODE> in class <CODE><A HREF="../../../org/jfree/data/Series.html" title="class in org.jfree.data">Series</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a clone of the time series.
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE> - if there is a cloning problem.</DL>
</DD>
</DL>
<HR>

<A NAME="createCopy(int, int)"><!-- --></A><H3>
createCopy</H3>
<PRE>
public <A HREF="../../../org/jfree/data/XYSeries.html" title="class in org.jfree.data">XYSeries</A> <B>createCopy</B>(int&nbsp;start,
                           int&nbsp;end)
                    throws java.lang.CloneNotSupportedException</PRE>
<DL>
<DD>Creates a new series by copying a subset of the data in this time series.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>start</CODE> - the index of the first item to copy.<DD><CODE>end</CODE> - the index of the last item to copy.
<DT><B>Returns:</B><DD>a series containing a copy of this series from start until end.
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE> - if there is a cloning problem.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;object)</PRE>
<DL>
<DD>Tests this series for equality with an arbitrary object.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/jfree/data/Series.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../org/jfree/data/Series.html" title="class in org.jfree.data">Series</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - the object to test against for equality (<code>null</code> permitted).
<DT><B>Returns:</B><DD>a boolean.</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns a hash code.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/jfree/data/Series.html#hashCode()">hashCode</A></CODE> in class <CODE><A HREF="../../../org/jfree/data/Series.html" title="class in org.jfree.data">Series</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a hash code.</DL>
</DD>
</DL>
<HR>

<A NAME="getDataPair(int)"><!-- --></A><H3>
getDataPair</H3>
<PRE>
public <A HREF="../../../org/jfree/data/XYDataPair.html" title="class in org.jfree.data">XYDataPair</A> <B>getDataPair</B>(int&nbsp;index)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Use getDataItem(index).</I>
<P>
<DD>Return the data pair with the specified index.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index.
<DT><B>Returns:</B><DD>the data pair with the specified index.</DL>
</DD>
</DL>
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