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Fig. 3 | BMC Bioinformatics

Fig. 3

From: Variable selection for binary classification using error rate p-values applied to metabolomics data

Fig. 3

CART variable importance. The CART method provides a measure of importance for each variable. These values (grey bars), along with the normalized values (blue bars), are depicted here in the form of a bar chart for each variable (y-axis) in order of decreasing importance. Figures a and b represent weight sets 1 and 2 respectively. The vertical black and red dashed lines represent values at which large drops in Normalized Importance occur and therefore possible cut-off choices for variable selection. The dashed red lines represent the cut-offs chosen for comparison with ERp, while the dashed black lines represent alternative choices

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