Fig. 4
From: Development and validation of classifiers and variable subsets for predicting nursing home admission
P-value as a function of the size of variable subset compared to the subsets of 15 variables. We defined that if p<.05, the difference between the performances of variable subsets is statistically significant. According to the definition, the optimal subset size for LR method is 9 variables. That is, the performance achieved by the subset size of 9 variables did not differ statistically from the subset of 15 variables, when the classifier is LR