Based on the following data table data.dat
x a b c d
0 284.15 69.18 284.15 70.26
0.03 284.15 70.20 284.15 70.04
0.04 318.15 70.20 284.15 70.04
0.1 318.15 70.20 284.15 70.04
1 318.15 70.20 284.15 70.04
5 314.75 70.20 284.13 70.04
6 314.75 70.20 284.12 70.04
10 314.75 70.20 284.10 70.05
15 314.75 70.20 284.08 70.05
20 284.05 70.20 284.05 70.05
30 284.00 70.19 284.00 70.06
50 283.90 70.19 283.90 70.07
100 283.66 70.18 283.66 70.09
200 283.60 70.17 283.58 70.12
300 284.55 70.15 284.50 70.12
400 286.12 70.11 286.06 70.09
500 287.87 70.04 287.81 70.03
600 289.58 69.95 289.53 69.94
1000 294.97 69.31 294.94 69.32
1500 298.86 67.98 298.85 68.00
2000 300.84 66.05 300.84 66.09
2500 301.64 63.48 301.84 63.53
3000 301.60 60.19 301.62 60.27
3500 300.85 56.08 300.88 56.19
4000 299.45 50.95 299.49 51.10
4500 297.31 44.46 297.38 44.69
5000 294.20 35.93 294.33 36.31
5500 289.36 23.33 289.64 24.14
5700 286.21 15.29 286.73 16.73
5710 286.00 14.77 286.55 16.28
I'm trying to plot the third and fith column for x in [0,20]. This is my MWE, that results in an error "dimension too large".
\documentclass{article}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
width=0.45\textwidth,
xmin=-2,
xmax=20,
ymin=70,
ymax=72
]
\addplot
table[x index=0, y expr={\thisrowno{2}+1.01325}, header=true] {data.dat};
\addplot
table[x index=0, y expr={\thisrowno{4}+1.01325}, header=true] {data.dat};
\end{axis}
\end{tikzpicture}
\end{document}
If I crop the data table or use the environment filecontents, no error occurs. Some choices of width and xmax work, while others don't. In general, a larger width seems to require a larger xmax.
Does anyone know the reason for the error?