PgfPlots with labeled plots extend outside the graph box

Question

Sorry for the confusing title.

The MWE

\documentclass{standalone}
\usepackage{pgfplots}

\begin{document}

    \begin{tikzpicture}[scale=0.75]
        \begin{axis}[ylabel=Y-Axis, xlabel=X-Axis, xmin=0, xmax=10, ymin=0, ymax=12, clip=false, yticklabel pos=right, ylabel near ticks]
        \pgfplotsinvokeforeach{0.01,0.1,0.9}{
            \addplot[mark=none, domain=0.0:10, thick] {-ln(#1/5^x)/ln(5)} node [pos=0,left] {$c_x=#1$};
        }
        \end{axis}
    \end{tikzpicture}

\end{document}

produces the following graph

This is just what I want... except that the c_x=0.01 line is extending outside of the box!

Setting clip=false is necessary to get the c_x= labels to show up, but I think that it's producing this side-effect.

How can I have my cake and eat it too? That is, how can I have my automagically-positioned labels on the left and my graph nicely contained on the right?

Answer 1

Ah, tricky one!

Here's a new command \sneakylabel{<label text>} that you can use instead of the node [pos=0] ... method.

\pgfplotsinvokeforeach{0.01,0.1,0.9}{
    \addplot[mark=none, domain=0.0:10, thick] {-ln(#1/5^x)/ln(5)};
    \sneakylabel{$c_x=#1$}
}

will give you

What it does first is position a coordinate at the start of the plot, with a unique name (which uses the label text, so if you need several identical labels, we'll have to tweak this a bit). Then it adds a \node command for the actual label to the after end axis-list, which contains code that will be executed after the clipping has been performed. The node is positioned using the coordinate we saved before.

Enjoy the cake!

\documentclass{standalone}
\usepackage{pgfplots}

\newcommand{\sneakylabel}[1]{
    \coordinate (sneakylabel{#1}) at (current plot begin);
    \pgfplotsset{
        after end axis/.append code={
            \node [anchor=east] at (sneakylabel{#1}){#1};
        }
    }
}

\begin{document}

    \begin{tikzpicture}[scale=0.75]
        \begin{axis}[ylabel=Y-Axis, xlabel=X-Axis, xmin=0, xmax=10, ymin=0, ymax=12, yticklabel pos=right, ylabel near ticks,]
        \pgfplotsinvokeforeach{0.01,0.1,0.9}{
            \addplot[mark=none, domain=0.0:10, thick] {-ln(#1/5^x)/ln(5)};
            \sneakylabel{$c_x=#1$}
        }
        \end{axis}
    \end{tikzpicture}

\end{document}

Answer 2

You could use the option restrict y to domain*=0:12.