Hi,
I am using pgfplots package to draw some diagrams from LyX. The following
syntax entered into TEX code works fine.
\begin{tikzpicture}
\begin{axis}[xlabel=Cost, ylabel=Error]
\addplot[color=red,mark=x] coordinates {
(2,-2.8559703)
(3,-3.5301677)
(4,-4.3050655)
(5,-5.1413136)
(6,-6.0322865)
(7,-6.9675052)
(8,-7.9377747)
};
\end{axis}
\end{tikzpicture}
But, if I want to plot from a file, I get errors:
-! Package pgfplots Error: sorry, plot file{umwc1.dat} could not be opened.
-! Package pgfplots Warning: the current plot has no coordinates (or all
have be en filtered away)
-! Package pgfplots Warning: You have an axis with empty range. Replacing it
with a default range and clearing all plots.
The code is:
\begin{tikzpicture}
\begin{axis}[xlabel=Cost, ylabel=Error]
\addplot file {data.dat};
\end{axis}
\end{tikzpicture}
data.dat file contains two columns with the numbers from previous example.
What could be the problem here?
Kind regards,
Sergey
