\begin{tabular}{|rr|r@{~}r@{~}l}\cline{1-2}
          method &  median &  &  & \\\cline{1-2}
   logNums.nb &    22.1 & -100\% & \boxplot{15}{34}{61}{69}{20}&100\%\\
      none.nb &     3.7 & -100\% & \boxplot{14}{35}{51}{63}{24}&100\%\\
     none.j48 &     0.0 & -100\% & \boxplot{15}{31}{50}{57}{37}&100\%\\
  logNums.j48 &     0.0 & -100\% & \boxplot{14}{31}{50}{57}{37}&100\%\\
 logNums.oneR &   -11.8 & -100\% & \boxplot{5}{26}{44}{50}{8}&100\%\\
    none.oneR &   -11.8 & -100\% & \boxplot{5}{26}{44}{50}{9}&100\%\\
\cline{1-2}\end{tabular}