Using all available variables the best predictive model of V included Hsd, PCveg and stand density (S) in the following formulation, V = 7.08 + 0.0690 H sd − 0.0423 P C veg + 0.893 1 − exp − 0.00691 S (6).
We calculated a propensity score for β-blocker-use with multivariable logistic regression, using all available variables.
For survival prediction, the average rule accuracy using all available variables is 82%, and 83.9% when using only the most significant variables.
Table 8 compares the area under the curve (AUC) for the ROC curves generated using all available variables and significant-only variables.
For hierarchical clustering, filter FSS always generated more accurate classifications than using all available variables, or after applying some traditional dimensionality reduction technique such as PCA.
By comparing the performances using five machine learning algorithms – AdaBoost, C4.5, CART, RBF neural network, and SVM – using all available variables and significant variables only, we found that using only the most significant variables provides a considerable improvement in performance.
Stepwise Cox regression models were fitted using all available variables or combination of selected variables to investigate different clinical circumstances and then compared by the likelihood ratio (LR) test.
Although some statistical programs may carry out MI using all available variables in standard models without any insight into the underlying mechanism, the use of specific equations is preferable.
In this analysis, we used all available 19 noncollinear demographic and lifestyle variables, as summarized in Tables 1 and 2. Figure 4 shows a scatter plot of the FDR adjusted p-values in logarithmic scale.
The first multiple imputation only used QOL and the six items of the score for PAIN for its imputation model (MI+0), the second used all other available variables as auxiliary variables for its imputation model (MI+48).
