## 4 Results
### Boosted Tree Models and Bootstrap Forest
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multicolumn{2}{c}{**Bootstrap Forest (\(k=1000\) Booststraps)**} & \multicolumn{2}{c}{**Boosted Tree (\(k=1000\))**} \\ \hline
**Variable** & **Number of Splits** & **Sums of Squares** & **Variable** & **Number of Splits** & **Sums of Squares** \\ \hline Face Plate Position & 25 & 2771.68 & Face Plate Position & 9 & 26,525.05 \\ Core Dust Speed & 13 & 1052.24 & Press Position Time & 6 & 17,736.67 \\ Press Position Time & 12 & 796.26 & Core Dust Speed & 7 & 14,952.18 \\ Total Press Time & 11 & 594.18 & Face Steam Flow & 4 & 9656.28 \\ Face Steam Flow & 15 & 592.02 & Total Press Time & 2 & 8360.52 \\ Adhesive Percent & 14 & 469.34 & Adhesive Percent & 4 & 7688.29 \\ \hline \hline \multicolumn{2}{c}{**Boostrap Forest (\(k=10,\!000\) Booststraps)**} & \multicolumn{2}{c}{**Boosted Tree (\(k=10,\!000\))**} \\ \hline
**Variable** & **Number of Splits** & **Sums of Squares** & **Variable** & **Number of Splits** & **Sums of Squares** \\ \hline Face Steam Flow & 20 & 2379.71 & Face Plate Position & 7 & 28,640.33 \\ Adhesive Percent & 29 & 2142.70 & Swing Plate Position & 7 & 16,677.42 \\ Face Plate Position & 87 & 1571.86 & Face Steam Flow & 8 & 15,481.28 \\ Press Position Time & 15 & 1470.78 & Adhesive Percent & 4 & 9656.11 \\ Swing Plate Position & 45 & 1319.93 & Press Position Time & 6 & 9553.90 \\ Resin Temperature & 20 & 1211.34 & Face Steam Flow & 6 & 8170.58 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Common predictors variables for 10-fold cross validation for both bootstrap forest and boosted tree models for MDF after \(k=1000\) bootstraps and \(k=10,\!000\), ranked by highest sums of squares. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multicolumn{2}{c}{**Bootstrap Forest (\(k=1000\) Booststraps)**} & \multicolumn{2}{c}{**Boosted Tree (\(k=1000\) Booststraps)**} \\ \hline
**Variable** & **Number of Splits** & **Sums of Squares** & **Variable** & **Number of Splits** & **Sums of Squares** \\ \hline Wet Bin Speed & 7 & 0.117 & Wet Bin Speed & 4 & 0.050 \\ Dryer Inlet Temperature & 2 & 0.023 & Flake Moisture Content & 4 & 0.049 \\ Flake Moisture Content & 2 & 0.019 & Dryer Inlet Temperature & 3 & 0.035 \\ \hline Dryer Outlet Temperature & 1 & 0.015 & Dryer Outlet Temperature & 2 & 0.017 \\ Mat Weight & 1 & 0.012 & Mat Weight & 2 & 0.017 \\ Wood Weight & 1 & 0.009 & Wood Weight & 2 & 0.016 \\ \hline
**Bootstrap Forest (\(k=10,\!000\) Booststraps)** & \multicolumn{2}{c}{**Boosted Tree (\(k=10,\!000\) Booststraps)**} \\ \hline
**Variable** & **Number of Splits** & **Sums of Squares** & **Variable** & **Number of Splits** & **Sums of Squares** \\ \hline Dryer Outlet Temperature & 5 & 0.172 & Dryer Inlet Temperature & 8 & 0.062 \\ Dryer Inlet Temperature & 5 & 0.093 & Wet Bin Speed & 5 & 0.045 \\ Wood Weight & 4 & 0.076 & Wood Weight & 3 & 0.034 \\ Flake Moisture Content & 6 & 0.035 & Press Closing Time & 6 & 0.026 \\ Dry Bin Speed & 2 & 0.026 & Dryer Outlet Temperature & 3 & 0.020 \\ Wet Bin Speed & 1 & 0.024 & Flake Moisture Content & 4 & 0.016 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Common predictors variables for both bootstrap forest and boosted tree models for OSB after \(k=1000\) bootstraps, ranked by highest sums of squares.