629     ytick={0,5,...,30},

   629     ytick={0,5,...,30},

   630     scaled ticks=false,

   630     scaled ticks=false,

   631     axis lines=left,

   631     axis lines=left,

   632     width=\textwidth,

   632     width=\textwidth,

   633     height=4cm, 

   633     height=4cm, 

   635     legend pos=north west,

   635     legend pos=north west,

   636     legend cell align=left]

   636     legend cell align=left]

   637 \addplot[blue,mark=*, mark options={fill=white}] table {re-python2.data};   

   637 \addplot[blue,mark=*, mark options={fill=white}] table {re-python2.data};   

   638 \addplot[cyan,mark=*, mark options={fill=white}] table {re-java.data};

   638 \addplot[cyan,mark=*, mark options={fill=white}] table {re-java.data};

   639 \addplot[red,mark=*, mark options={fill=white}] table {re-js.data};

   639 \addplot[red,mark=*, mark options={fill=white}] table {re-js.data};

   640 \end{axis}

   641 \end{axis}

   641 \end{tikzpicture}

   642 \end{tikzpicture}

   642 %

   643 %

   643 \end{column}

   644 \end{column}

   644 \begin{column}{.5\textwidth}

   645 \begin{column}{.5\textwidth}