## 3 Results and Discussion  
### Analysis of the New--Fi-Parameter  
A regression model was proposed, as described in Equation (5), to predict the new--Fi-parameter. However, Table 6 shows the regression statistics for establishing the new--Fi-parameter regression model Equation (5). Important information about how to fit the model to the data can be found in the regression statistics. The R-squared (R\({}^{2}\)) value, also called the coefficient of determination, is widely accepted as a scale for assessing regression analysis [65]. It revealed how accurately the model predicted the response variable's potential to change. The R\({}^{2}\) value falls within a certain range of numbers (0, 1). R\({}^{2}\) would equal one if the model and data were perfectly matched; hence, the closer it is to that value, the better the model fits the data [66].  
\begin{table}
\begin{tabular}{c c} \hline \hline
**Regression Statistics** & **Value** \\ \hline Coefficient of determination & 0.703 \\ Adjusted coefficient of determination & 0.702 \\ Standard error & 0.0706 \\ No. of observations & 377 \\ \hline \hline \end{tabular}
\end{table}
Table 6: The regression statistics from Excel for establishing Equation (5).  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Weights**} & \multicolumn{5}{c}{**Input Variables**} & \multirow{2}{*}{**Basis (b\({}_{\text{i}}\))**} \\ \cline{2-2} \cline{4-6}  & **WFC\({}_{\text{N}}\)** & **STN\({}_{\text{N}}\)** & **MC\({}_{\text{N}}\)** & **DD\({}_{\text{N}}\)** & \\ \hline \(W_{\text{1j}}\) & \(0.1986\) & \(0.6715\) & \(-0.5673\) & \(-0.9352\) & \(0.0433\) \\ \(W_{\text{2j}}\) & \(-5.7815\) & \(-2.7118\) & \(-3.9312\) & \(-1.1553\) & \(3.6839\) \\ \(W_{\text{3j}}\) & \(0.7341\) & \(0.8987\) & \(1.2139\) & \(0.1118\) & \(0.1409\) \\ \(W_{\text{4j}}\) & \(-11.6507\) & \(-4.9535\) & \(-1.0653\) & \(8.1518\) & \(0.8038\) \\ \(W_{\text{5j}}\) & \(0.0264\) & \(0.5578\) & \(0.7884\) & \(0.1693\) & \(0.0233\) \\ \(W_{\text{6j}}\) & \(1.4715\) & \(-1.9147\) & \(7.9025\) & \(3.7653\) & \(-5.9760\) \\ \(W_{\text{7j}}\) & \(-1.0805\) & \(1.9518\) & \(1.5860\) & \(1.4205\) & \(0.6643\) \\ \(W_{\text{8j}}\) & \(0.8163\) & \(0.2288\) & \(-0.5599\) & \(-2.9521\) & \(-0.3651\) \\ \(W_{\text{9j}}\) & \(-0.0259\) & \(-0.0534\) & \(1.0571\) & \(0.6236\) & \(-0.5466\) \\ \(W_{\text{10j}}\) & \(2.7837\) & \(6.4499\) & \(-18.5676\) & \(-7.1681\) & \(5.6709\) \\ \(W_{\text{11j}}\) & \(15.1903\) & \(5.0058\) & \(-0.3010\) & \(-4.4041\) & \(-2.2968\) \\ \(W_{\text{12j}}\) & \(-1.2594\) & \(2.4725\) & \(1.7532\) & \(1.6324\) & \(0.4469\) \\ \(W_{\text{13j}}\) & \(-3.2729\) & \(6.3007\) & \(4.1236\) & \(-1.4847\) & \(-1.5261\) \\ \(W_{\text{14j}}\) & \(-0.0491\) & \(0.2883\) & \(-1.8606\) & \(-0.9303\) & \(-1.1285\) \\ \(W_{\text{15j}}\) & \(-3.7142\) & \(-4.2561\) & \(6.8057\) & \(1.8025\) & \(0.2621\) \\ \(W_{\text{16j}}\) & \(-0.2554\) & \(0.2380\) & \(0.8167\) & \(0.4158\) & \(-0.1122\) \\ \(W_{\text{17j}}\) & \(-0.5280\) & \(-1.2007\) & \(2.0617\) & \(0.8477\) & \(1.3782\) \\ \(W_{\text{18j}}\) & \(9.2521\) & \(6.0748\) & \(1.6795\) & \(-1.0984\) & \(-1.7335\) \\ \(W_{\text{19j}}\) & \(0.1171\) & \(0.7396\) & \(1.2181\) & \(0.0506\) & \(0.0642\) \\ \(W_{\text{20j}}\) & \(0.1127\) & \(0.7203\) & \(1.0166\) & \(-3.0348\) & \(1.3510\) \\ \hline \hline \end{tabular}
\end{table}
Table 5: Connection weight values for Equations F1, F2, F3, F4......, F20 for the modified horizontal force calculation (for F2, it could put Sum2, for F3, it could put Sum3 and so on).