timeseries.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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<DT><B>Parameters:</B><DD><CODE>index</CODE> - the item index (zero-based).
<DT><B>Returns:</B><DD>The data item.</DL>
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<A NAME="getDataItem(org.jfree.data.time.RegularTimePeriod)"><!-- --></A><H3>
getDataItem</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/time/TimeSeriesDataItem.html" title="class in org.jfree.data.time">TimeSeriesDataItem</A> <B>getDataItem</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period)</PRE>
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<DD>Returns the data item for a specific period.
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - the period of interest (<code>null</code> not allowed).
<DT><B>Returns:</B><DD>The data item matching the specified period (or <code>null</code> if there is
         no match).</DL>
</DD>
</DL>
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<A NAME="getTimePeriod(int)"><!-- --></A><H3>
getTimePeriod</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A> <B>getTimePeriod</B>(int&nbsp;index)</PRE>
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<DD>Returns the time period at the specified index.
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<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index of the data item.
<DT><B>Returns:</B><DD>The time period.</DL>
</DD>
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<A NAME="getNextTimePeriod()"><!-- --></A><H3>
getNextTimePeriod</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A> <B>getNextTimePeriod</B>()</PRE>
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<DD>Returns a time period that would be the next in sequence on the end of
 the time series.
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<DT><B>Returns:</B><DD>The next time period.</DL>
</DD>
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<A NAME="getTimePeriods()"><!-- --></A><H3>
getTimePeriods</H3>
<PRE>
public java.util.Collection <B>getTimePeriods</B>()</PRE>
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<DD>Returns a collection of all the time periods in the time series.
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<DT><B>Returns:</B><DD>A collection of all the time periods.</DL>
</DD>
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<A NAME="getTimePeriodsUniqueToOtherSeries(org.jfree.data.time.TimeSeries)"><!-- --></A><H3>
getTimePeriodsUniqueToOtherSeries</H3>
<PRE>
public java.util.Collection <B>getTimePeriodsUniqueToOtherSeries</B>(<A HREF="../../../../org/jfree/data/time/TimeSeries.html" title="class in org.jfree.data.time">TimeSeries</A>&nbsp;series)</PRE>
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<DD>Returns a collection of time periods in the specified series, but not in
 this series, and therefore unique to the specified series.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series to check against this one.
<DT><B>Returns:</B><DD>The unique time periods.</DL>
</DD>
</DL>
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<A NAME="getIndex(org.jfree.data.time.RegularTimePeriod)"><!-- --></A><H3>
getIndex</H3>
<PRE>
public int <B>getIndex</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period)</PRE>
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<DD>Returns the index for the item (if any) that corresponds to a time period.
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - the time period (<code>null</code> not permitted).
<DT><B>Returns:</B><DD>The index.</DL>
</DD>
</DL>
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<A NAME="getValue(int)"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Number <B>getValue</B>(int&nbsp;index)</PRE>
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<DD>Returns the value at the specified index.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>index</CODE> - index of a value.
<DT><B>Returns:</B><DD>The value (possibly <code>null</code>).</DL>
</DD>
</DL>
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<A NAME="getValue(org.jfree.data.time.RegularTimePeriod)"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Number <B>getValue</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period)</PRE>
<DL>
<DD>Returns the value for a time period.  If there is no data item with the specified period,
 this method will return <code>null</code>.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - time period (<code>null</code> not permitted).
<DT><B>Returns:</B><DD>The value (possibly <code>null</code>).</DL>
</DD>
</DL>
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<A NAME="add(org.jfree.data.time.TimeSeriesDataItem)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(<A HREF="../../../../org/jfree/data/time/TimeSeriesDataItem.html" title="class in org.jfree.data.time">TimeSeriesDataItem</A>&nbsp;item)</PRE>
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<DD>Adds a data item 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 registerd listeners.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>item</CODE> - the (timeperiod, value) pair (<code>null</code> not permitted).</DL>
</DD>
</DL>
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<A NAME="add(org.jfree.data.time.RegularTimePeriod, double)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period,
                double&nbsp;value)</PRE>
<DL>
<DD>Adds a new data item 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 registerd listeners.
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<DD><DL>
</DL>
</DD>
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - the time period (<code>null</code> not permitted).<DD><CODE>value</CODE> - the value.</DL>
</DD>
</DL>
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<A NAME="add(org.jfree.data.time.RegularTimePeriod, java.lang.Number)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period,
                java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Adds a new data item 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 registerd listeners.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - the time period (<code>null</code> not permitted).<DD><CODE>value</CODE> - the value (<code>null</code> permitted).</DL>
</DD>
</DL>
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<A NAME="update(org.jfree.data.time.RegularTimePeriod, java.lang.Number)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period,
                   java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Updates (changes) the value for a time period.  Throws a <A HREF="../../../../org/jfree/data/SeriesException.html" title="class in org.jfree.data"><CODE>SeriesException</CODE></A> if
 the period does not exist.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - the period (<code>null</code> not permitted).<DD><CODE>value</CODE> - the value (<code>null</code> permitted).</DL>
</DD>
</DL>
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<A NAME="update(int, java.lang.Number)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(int&nbsp;index,
                   java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Updates (changes) the value of a data item.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index of the data item.<DD><CODE>value</CODE> - the new value (<code>null</code> permitted).</DL>
</DD>
</DL>
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<A NAME="addAndOrUpdate(org.jfree.data.time.TimeSeries)"><!-- --></A><H3>
addAndOrUpdate</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/time/TimeSeries.html" title="class in org.jfree.data.time">TimeSeries</A> <B>addAndOrUpdate</B>(<A HREF="../../../../org/jfree/data/time/TimeSeries.html" title="class in org.jfree.data.time">TimeSeries</A>&nbsp;series)</PRE>
<DL>
<DD>Adds or updates data from one series to another.  Returns another series
 containing the values that were overwritten.
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</DD>
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<DT><B>Parameters:</B><DD><CODE>series</CODE> - the series to merge with this.
<DT><B>Returns:</B><DD>A series containing the values that were overwritten.</DL>
</DD>
</DL>
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<A NAME="addOrUpdate(org.jfree.data.time.RegularTimePeriod, double)"><!-- --></A><H3>
addOrUpdate</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/time/TimeSeriesDataItem.html" title="class in org.jfree.data.time">TimeSeriesDataItem</A> <B>addOrUpdate</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period,
                                      double&nbsp;value)</PRE>
<DL>
<DD>Adds or updates an item in the times series and sends a 
 <A HREF="../../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all registered listenrs.
<P>
<DD><DL>
</DL>
</DD>
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<DT><B>Parameters:</B><DD><CODE>period</CODE> - the time period to add/update (<code>null</code> not permitted).<DD><CODE>value</CODE> - the new value.
<DT><B>Returns:</B><DD>A copy of the overwritten data item, or <code>null</code> if no item 
         was overwritten.</DL>
</DD>
</DL>
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<A NAME="addOrUpdate(org.jfree.data.time.RegularTimePeriod, java.lang.Number)"><!-- --></A><H3>
addOrUpdate</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/time/TimeSeriesDataItem.html" title="class in org.jfree.data.time">TimeSeriesDataItem</A> <B>addOrUpdate</B>(<A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A>&nbsp;period,
                                      java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Adds or updates an item in the times series and sends a 
 <A HREF="../../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all registered listenrs.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>period</CODE> - the time period to add/update (<code>null</code> not permitted).<DD><CODE>value</CODE> - the new value (<code>null</code> permitted).
<DT><B>Returns:</B><DD>A copy of the overwritten data item, or <code>null</code> if no item 
         was overwritten.</DL>