[Pgfplots-features] How to remove axis arrows? -> problem with axis y line*: yshift moves label in x-direction

[Richard J. B. <jan...@gm...>]

Hello everyone!

First of all: thanks for pgfplots! It's a great tool!

I wanted to have my y axis in the center of my plot without it having
arrow heads. However, since that does not affect the ylabel, I needed to
rotate and place it manually. Doing this I seem to have encountered some
odd behaviour when using \axis y line*=center in conjunction with ylabel
style to adjust the position of the ylabel. Here is my example (I hope
it is minimal enough):

\begin{tikzpicture}
    \begin{axis}[
        axis y line*=center,
        axis x line=none,
        ylabel=ylabel,
        xlabel=xlabel,
        xtick=\empty,
        ytick=\empty,
        ylabel style={at={(current axis.above origin)},yshift=-4em,rotate=-90}
        ]
        \addplot[mark=none,black] coordinates {
    \end{axis}
\end{tikzpicture}

If you adjust the yshift key you will see that the ylabel is in fact
moved in x-direction, not in y-direction (conversely, xshift would move
the ylabel in y-drection).

Is this maybe a bug? And also: is there an easier way to remove the
arrow head on a (centered) axis and its label rotated and positioned
correctly?


Cheers,
Janis