# Graph is plotted wrong with pgfplots

currently trying to make a graph with the forumla 0.5+(2x/3) but it does not seem to be correct? This is the code I am using (sorry if it looks bad :D)

\begin{tikzpicture}
\begin{axis}[
title={\texttt{Vatten hastighet från kant till mitt}},
xlabel=$Meter från kant (m)$,
ylabel={$v (m/s)$},
xmin=0,
xmax=3
]
\addplot[color=red] {0.5 + 2*x/3 };
\end{axis}
\end{tikzpicture}


It is not correct, it should start at 0.5?

• Try forcing ymin=0 – bonanza Apr 28 '16 at 15:56
• Just for the record: the plot was and is right. The 0 you see on the axis is only the origin of the x axis but not of the y axis. This is changed by the above setting. – bonanza Apr 28 '16 at 16:03
• Yeah I noticed that now, thank you again :-) – Johan von Hacht Apr 28 '16 at 16:05
• Don't mark questions with [solved], this is not a forum. You can ask @bonanza to post an answer or post it yourself. – Alenanno Apr 29 '16 at 14:47
• Also, don't write text in math mode, as you have done with the x label. If you want italics, use for example \textit{...}. Otherwise write xlabel={Meter från kant (m)},ylabel={$v$ (m/s)}. – Torbjørn T. Apr 29 '16 at 17:39

The plot is correct, in order to see the the origin include ymin=0, i.e.:

\begin{tikzpicture}
\begin{axis}[
title={\texttt{Vatten hastighet från kant till mitt}},
xlabel=$Meter från kant (m)$,
ylabel={$v (m/s)$},
ymin=0,
xmin=0,
xmax=3
]
\addplot[color=red] {0.5 + 2*x/3 };
\end{axis}
\end{tikzpicture}