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- use LaTeX-style double quotes.

\label{Authoring_Dynamic_Plot_Curve_Data}

The \textbf{data} tag is used to specify the values plotted in the 
\textbf{gnuplot} tag (see ``Authoring Dynamically Generated Plots'' section 
\ref{Authoring_Dynamic_Plot_Gnuplot}).
The \textbf{data} tag is only used in the \textbf{Curve} tag 
(see ``Specifying Curves to Plot'' section \ref{Authoring_Dynamic_Plot_Curve}).

The data must be either a perl array, \texttt{@X}, or a comma separated list,
such as ``0.5,0.9,1.5, 2.4'' (without quotes).  `NaN' is a valid value. 
Note the the ``Y'' values are entered in a separate array.

The function and number of \textbf{data} tags required varies based on the 
line style (see ``Data and Line Styles'' section \ref{Authoring_Dynamic_Plot_Linestyle}) chosen for the
curve.  Some linestyles require extra arrays for supplemental information. 
In all cases the first \textbf{data} tag will hold the ``X'' values
and the second will hold the ``Y'' values.

All of the data sets in the \textbf{data} tag must have the same number of
elements.