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<H1><A NAME="SECTION03010000000000000000"></A>
<A NAME="commands_set_style_boxerrorbars"></A><A NAME="set_style_boxerrorbars"></A><A NAME="plotting_styles_boxerrorbars"></A><A NAME="style_boxerrorbars"></A><A NAME="boxerrorbars"></A><A NAME="1497"></A>
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Boxerrorbars
</H1>
The <B>boxerrorbars</B> style is only relevant to 2D data plotting. It is a
combination of the <B>boxes</B> and <B>yerrorbars</B> styles. It uses 3, 4, or 5
columns of data:
<P>
<BR>
<PRE>
3 columns: x y ydelta
4 columns: x y ydelta xdelta # boxwidth != -2
4 columns: x y ylow yhigh # boxwidth == -2
5 columns: x y ylow yhigh xdelta
</PRE>
<BR>
<P>
The boxwidth will come from the fourth column if the y errors are given as
<TT>"</TT>ydelta<TT>"</TT> and the boxwidth was not previously set to -2.0 (<B>set boxwidth -2.0</B>)
or from the fifth column if the y errors are in the form of <TT>"</TT>ylow yhigh<TT>"</TT>. The
special case <B>boxwidth = -2.0</B> is for four-column data with y errors in the
form <TT>"</TT>ylow yhigh<TT>"</TT>. In this case the boxwidth will be calculated so that each
box touches the adjacent boxes. The width will also be calculated in cases
where three-column data are used.
<P>
The box height is determined from the y error in the same way as it is for
the <B>yerrorbars</B> style -- either from y-ydelta to y+ydelta or from ylow to
yhigh, depending on how many data columns are provided.
See also
<P>
http://www.gnuplot.info/demo/mgr.html<TT>errorbar demo.
</TT>
<P>
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<ADDRESS>
2010-08-17
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