Distance of the labels from the axis

Question

I am a beginner with the package TikZ. I am using pgfplots to produce a very simple plot. The code I am using has been copied from an example found on the web, but my output is different from the example I saw.

This is the code:

\pgfplotsset{   width=0.45\linewidth,
             xmin=0,xmax=100,
             ymin=0,ymax=1,
             grid=major
            }
\begin{tikzpicture}
\begin{axis}[
    xlabel=Percentage,
    ylabel=Accuracy]
    \addplot[smooth,mark=*,blue] plot coordinates {
    (11,0.6)
(15,    0.71)
(19,    0.7)
(25,    0.74)
(32,    0.73)
(40,    0.78)
(50,    0.81)
(51,    0.79)
(55,    0.79)
(56,    0.79)
(58,    0.77)
(61,    0.77)
(69,    0.77)
};
\addlegendentry{legend}
[...]

In the output the labels of the axis ticks are too close to the line. Is there any way to move the farther away? [I cannot post an image because my reputation is too low]

I have read the manual and checked other questions, but I cannot find the option/command I need to use.

Could you please help me?

---

While writing the minimal example as requested in the comments, I discovered that I see that problem only when the document class is baposter. With the article class it works ok.

The minimal working example with class baposter follows:

\documentclass[a0paper,portrait]{baposter}

\usepackage{graphicx}

\usepackage{tikz}
\usepackage{pgfplots}

\begin{document}

  \begin{poster}{
    grid=false, 
    colspacing=0.7em,
    eyecatcher=false, 
    bgColorOne=white,
    background=plain,
   } %poster
   % eyecatcher
   {

   }
   % title
   {
    TITLE
   }
   %Authors
   {
    AUTHORS
   }
   % Logo
   {

   }

  \headerbox{header}{name=header,column=0,row=0,span=4}{ 
    \pgfplotsset{width=0.45\linewidth,
             xmin=0,xmax=100,
             ymin=0,ymax=1,
             grid=major
            }
    \begin{tikzpicture}
      \begin{axis}[
        xlabel=p,
        ylabel=a]
        \addplot[smooth,mark=*,blue] plot coordinates {
            (11, 0.6)
            (15, 0.71)
            (19, 0.7)
            (25, 0.74)

        };
        \addlegendentry{legend}
      \end{axis}
    \end{tikzpicture}
} % headerbox

\end{poster}

\end{document}

Answer 1

This happens because the baposter class puts all its contents into a tikzpicture with the option inner sep=0pt, outer sep=0pt, which is passed on to your tikzpicture, causing the tick label nodes to be printed without any padding. You can reset the padding by adding inner sep=0.333em, outer sep=0.5\pgflinewidth to your tikzpicture options (those are the default values):

\documentclass[a0paper,portrait]{baposter}

\usepackage{graphicx}

\usepackage{tikz}
\usepackage{pgfplots}

\begin{document}

  \begin{poster}{
    grid=false, 
    colspacing=0.7em,
    eyecatcher=false, 
    bgColorOne=white,
    background=plain,
   } %poster
   % eyecatcher
   {

   }
   % title
   {
    TITLE
   }
   %Authors
   {
    AUTHORS
   }
   % Logo
   {

   }

  \headerbox{header}{name=header,column=0,row=0,span=4}{ 
    \pgfplotsset{width=0.45\linewidth,
             xmin=0,xmax=100,
             ymin=0,ymax=1,
             grid=major
            }
    \begin{tikzpicture}[inner sep=0.3333em, outer sep=0.5\pgflinewidth]
      \begin{axis}[
        xlabel=p,
        ylabel=a]
        \addplot[smooth,mark=*,blue] plot coordinates {
            (11, 0.6)
            (15, 0.71)
            (19, 0.7)
            (25, 0.74)

        };
        \addlegendentry{legend}
      \end{axis}
    \end{tikzpicture}
} % headerbox

\end{poster}

\end{document}

Answer 2

You could use nodes instaed of xlabel and ylabel. You can place the nodes where you want by defining the right position.

\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\usetikzlibrary{plotmarks, arrows, shapes, backgrounds, shadows, positioning, calc, fit}

\begin{document}


\pgfplotsset{   width=0.45\linewidth,
             xmin=0,xmax=100,
             ymin=0,ymax=1,
             grid=major
            }
\begin{tikzpicture}
\begin{axis}[
    %xlabel=Percentage,
    %ylabel=Accuracy
        ]
    \addplot[smooth,mark=*,blue] plot coordinates {
    (11,0.6)
(15,    0.71)
(19,    0.7)
(25,    0.74)
(32,    0.73)
(40,    0.78)
(50,    0.81)
(51,    0.79)
(55,    0.79)
(56,    0.79)
(58,    0.77)
(61,    0.77)
(69,    0.77)
};

\end{axis}

\node at (1.5cm,-0.8cm) {Percentage};
\node at (-1cm,1.5cm) [rotate=90, anchor=base] {Acccuracy};
\end{tikzpicture}

\end{document}