\begin{tabular}{|rr|r@{~}r@{~}l}\cline{1-2}
          method &  median &  &  & \\\cline{1-2}
  logNums.j48 &     0.0 & -100\% & \boxplot{12}{37}{50}{54}{33}&100\%\\
     none.j48 &     0.0 & -100\% & \boxplot{10}{39}{50}{54}{34}&100\%\\
 logNums.oneR &     0.3 & -100\% & \boxplot{4}{45}{50}{53}{35}&100\%\\
    none.oneR &     0.3 & -100\% & \boxplot{8}{41}{50}{53}{35}&100\%\\
      none.nb &    -2.3 & -100\% & \boxplot{11}{34}{48}{50}{45}&100\%\\
   logNums.nb &   -26.0 & -100\% & \boxplot{19}{10}{37}{50}{45}&100\%\\
\cline{1-2}\end{tabular}