AddBF: Add a new pair of Basis Functions

In boostingDEA: A Boosting Approach to Data Envelopment Analysis

Add a new pair of Basis Functions

Description

This function adds the best pair of basis functions to the model

Usage

AddBF(data, x, y, ForwardModel, knots_list, Kp, minspan, Le, linpreds, err_min)

Arguments

data	data data.frame or matrix containing the variables in the model.
x	Column input indexes in data.
y	Column output indexes in data.
ForwardModel	list containing the set of basis functions and the B matrix.
knots_list	list containing the set of selected knots.
Kp	Maximum degree of interaction allowed.
minspan	integer. Minimum number of observations between knots. When minspan = 0, it is calculated as in Friedman's MARS paper section 3.8 with alpha = 0.05.
Le	integer Minimum number of observations before the first and after the final knot.
linpreds	logical. If TRUE, predictors can enter linearly
err_min	Minimum error in the split.

Value

A list containing the matrix of basis functions (B), a list of basis functions (BF), a list of selected knots (knots_list) and the minimum error (err_min).

boostingDEA documentation built on May 31, 2023, 6:33 p.m.