solutions.tex

\documentclass{standalone}

\usepackage{tikz}
\usepackage{pgfplots}
\usepgfplotslibrary{fillbetween}
\usetikzlibrary{patterns}
\pgfplotsset{compat=1.10}


\begin{document}
\makeatletter
\pgfplotsset{
    calculate offset/.code={
        \pgfkeys{/pgf/fpu=true,/pgf/fpu/output format=fixed}
        \pgfmathsetmacro\testmacro{(\pgfplotspointmeta *10^\pgfplots@data@scale@trafo@EXPONENT@y)*\pgfplots@y@veclength)}
        \pgfkeys{/pgf/fpu=false}
    },
    every node near coord/.style={
        /pgfplots/calculate offset,
        yshift=-\testmacro
    },
}
    \begin{tikzpicture}
	%\begin{axis}[
	    %width=\textwidth,
	    %%height=0.55\textwidth,
	    %xlabel=Number of players,
	    %grid=major,
	    %ylabel=Total points,
	    %ybar,
	    %%ymode=log,
	    %%xmin=-0.1,xmax=5000, % <-- added here to preserve view
	    %%ymin=-0.1,ymax=37000,
	    %legend style={at={(0.52,-0.12)},anchor=north, legend columns=3}
	%]

	\begin{axis}[
	    ybar=0pt,
	    width=\textwidth,
	    ylabel={Points},
	    xlabel={Players},
	    ymajorgrids,
	    xmax=35,
	    xtick=data,
	    minor tick length=2ex,
	    bar width=0.37,
	    %enlargelimits=0.15,
	    %xticklabels = {
		%Category 1,
		%Category 2,
		%Category 3,
		%Category 7,
		%Category 5,
		%Category 7
	    %},
	    major x tick style = {opacity=0},
	    minor x tick num = 1,
	    enlarge x limits=0.05,
	    minor tick length=2ex,
	    legend style={at={(0.52,-0.12)},anchor=north, legend columns=7},
	    %nodes near coords,
	    %nodes near coords style={anchor=south,rotate=00,inner xsep=1pt, font=\footnotesize},
	    %every node near coord/.append style={
		    %anchor=east,
		    %rotate=70
	    %}
	]

	\addplot[draw=black, fill=black!70] table [col sep=comma, y index = {2}, nodes near coords=ILP]{../results/ilp/clean};	
	\addlegendentry{ILP};

	\addplot[draw=green, fill=green!70] table [col sep=comma, y index = {2}, nodes near coords=GRASP]{../results/grasp/clean};	
	\addlegendentry{GRASP};

	\addplot[draw=blue, fill=blue!70] table [col sep=comma, y index = {2}, nodes near coords=Local Search]{../results/localSearch/clean};	
	\addlegendentry{Local Search};

	\addplot[draw=brown, fill=brown!70] table [col sep=comma, y index = {2}, nodes near coords=Greedy]{../results/greedy/clean};	
	\addlegendentry{Greedy};


	%\addplot[mark=pentagon, mark size=1pt, black] table [col sep=comma, y index = {2}]{../results/ilp/clean};	
	%\addlegendentry{Optimal};


	%\addplot[mark=*,mark size=0.25pt, dashed, green] table [col sep=comma, y index = {2}]{../results/grasp/clean};	
	%\addlegendentry{GRASP};

	%\addplot[mark=pentagon, mark size=1pt, brown] table [col sep=comma, y index = {2}]{../results/greedy/clean};	
	%\addlegendentry{Greedy};

	%\addplot[mark=pentagon, mark size=1pt, blue] table [col sep=comma, y index = {2}]{../results/localSearch/clean};	
	%\addlegendentry{Local Search};

	\end{axis}
    \end{tikzpicture}
\end{document}