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Table 2 MARS Basis Functions

From: Variable selection methods for developing a biomarker panel for prediction of dengue hemorrhagic fever

Bm

Definition

am

Variable

Variable

   

descriptor

Importance

BF1

(IL10 − 5.17)+

0.312

IL10

100%

BF3

(Lymphocytes − 8)+

−0.011

Lymphocytes

84%

BF4

(Platelets − 45)+

−0.004

Platelets

72%

  1. Shown are the basis functions (BF) for the MARS model for Dengue hemorrhagic fever.
  2. Bm each indiviual basis function, am, coefficient of the basis function. (y)+, = max(0, y).