\begin{figure}[!t]
\begin{center}
{\scriptsize
\begin{tabular}{|c| r    | r         | @{}c@{}                 |        @{}c         |}\hline
                    &      &           & Median        & Reduction Quartiles \\
               Rank & Dataset & Bins & Reduc           &        50\% \\\hline
1 & china & 8Bins& 63\% & \boxplot{49.7211}{13.4785}{63.1996}{11.8495}{75.0491}\\ 
1 & china & 6Bins& 63\% & \boxplot{48.0741}{14.8969}{62.9711}{6.42154}{69.3926}\\ 
1 & china & 3Bins& 60\% & \boxplot{49.543}{10.0905}{59.6335}{15.8844}{75.5179}\\ 
1 & china & 5Bins& 59\% & \boxplot{48.5543}{10.3527}{58.907}{13.2656}{72.1727}\\ 
1 & china & 10Bins& 57\% & \boxplot{42.0896}{14.777}{56.8666}{14.8977}{71.7643}\\ 
1 & china & 4Bins& 55\% & \boxplot{31.9006}{23.4366}{55.3372}{24.395}{79.7322}\\ 
1 & china & 2Bins& 40\% & \boxplot{26.3812}{13.7463}{40.1275}{15.0613}{55.1889}\\\hline 

1 & china1 & 6Bins& 70\% & \boxplot{51.0859}{18.6365}{69.7224}{11.884}{81.6064}\\ 
1 & china1 & 4Bins& 64\% & \boxplot{37.4799}{27.0008}{64.4807}{19.2773}{83.758}\\ 
1 & china1 & 10Bins& 59\% & \boxplot{35.4631}{23.9235}{59.3866}{13.5224}{72.9091}\\ 
1 & china1 & 5Bins& 54\% & \boxplot{36.7752}{17.6854}{54.4606}{16.9582}{71.4188}\\ 
1 & china1 & 2Bins& 47\% & \boxplot{33.0846}{13.8616}{46.9462}{16.6794}{63.6256}\\ 
1 & china1 & 3Bins& 46\% & \boxplot{39.4926}{6.1359}{45.6285}{22.5908}{68.2193}\\\hline 

1 & china2 & 6Bins& 83\% & \boxplot{60.0069}{22.7119}{82.7188}{6.34208}{89.0608}\\ 
1 & china2 & 5Bins& 76\% & \boxplot{49.8026}{25.9632}{75.7658}{10.8707}{86.6365}\\ 
1 & china2 & 4Bins& 71\% & \boxplot{40.1554}{30.674}{70.8294}{6.05384}{76.8833}\\ 
1 & china2 & 3Bins& 61\% & \boxplot{47.9696}{12.8999}{60.8695}{11.2827}{72.1522}\\ 
1 & china2 & 10Bins& 48\% & \boxplot{28.2015}{20.1772}{48.3787}{26.4468}{74.8255}\\ 
1 & china2 & 2Bins& 46\% & \boxplot{30.9375}{15.0806}{46.0181}{8.34765}{54.3658}\\ 
1 & china2 & 8Bins& 42\% & \boxplot{14.5955}{27.4959}{42.0914}{27.2461}{69.3375}\\\hline 

1 & kemerer & 6Bins & 64\% & \boxplot{35.5973}{28.3308}{63.9281}{16.0726}{80.0007}\\ 
1 & kemerer & 4Bins & 51\% & \boxplot{30.0417}{20.8591}{50.9008}{18.2169}{69.1177}\\ 
1 & kemerer & 3Bins & 49\% & \boxplot{31.8831}{17.3053}{49.1884}{20.254}{69.4424}\\ 
1 & kemerer & 2Bins & 38\% & \boxplot{15.2727}{22.4877}{37.7604}{13.9501}{51.7104}\\\hline 

1 & telecom & 4Bins & 81\% & \boxplot{73.6067}{7.043}{80.6497}{7.35909}{88.0088}\\ 
1 & telecom & 3Bins & 77\% & \boxplot{42.9378}{33.7678}{76.7057}{8.60488}{85.3106}\\ 
2 & telecom & 2Bins & 53\% & \boxplot{37.5326}{15.4232}{52.9559}{12.07}{65.0259}\\\hline  
 
1 & miya & 8Bins& 72\% & \boxplot{49.3884}{23.0887}{72.4771}{7.14319}{79.6203}\\ 
1 & miya & 2Bins& 62\% & \boxplot{28.5081}{33.0699}{61.5779}{13.0333}{74.6112}\\ 
1 & miya & 3Bins& 54\% & \boxplot{43.4281}{11.0563}{54.4844}{15.4194}{69.9038}\\ 
2 & miya & 6Bins& 40\% & \boxplot{17.6339}{22.0958}{39.7297}{25.2848}{65.0146}\\\hline 

1 & finnish & 4Bins& 24\% & \boxplot{17.8018}{6.56239}{24.3642}{2.90293}{27.2671}\\ 
1 & finnish & 3Bins& 22\% & \boxplot{16.2626}{6.05082}{22.3134}{6.37041}{28.6838}\\ 
1 & finnish & 5Bins& 20\% & \boxplot{14.2354}{5.85771}{20.0931}{5.31048}{25.4036}\\ 
2 & finnish & 2Bins& 19\% & \boxplot{14.2233}{4.41144}{18.6347}{3.73314}{22.3678}\\ 
2 & finnish & 6Bins& 17\% & \boxplot{12.0508}{4.53579}{16.5866}{14.8307}{31.4172}\\\hline 
  \multicolumn{4}{c}{~}       &\multicolumn{1}{c}{50\%}
\end{tabular}}\end{center}
\caption{Results of Discretization on {\W}'s effort reduction performace.
The right-hand-side column shows {\em quartile} charts where black circles denote the median value and horinzontal lines denote the inter-quartile range (25\% to 75\%).
The vertical dashed line shows a 50\% reduction. The $rank$ column (left-hand-side) comes from a Mann-Whitney test (95\% confidence).
Within the results for each data set, row 1 gets ranked \#1 and row $i>1$ gets ranked the same as all the above rows with the same rank (if it is statistically the same).
Otherwise, it gets ranked one plus the prior row of different rank. Note the large variances in our results meant that most of our results were stastically very similar. }\label{fig:testing}

\end{figure}
