ForgeVA {BESTree} | R Documentation |
Quickly build the Available Variable list necessary for BEST This list contains details as to which variables is available for the partitioning. It also contains which variables are gating variables.
ForgeVA(d, GV, BEV, Thresh = 0.5, Direc = 0)
d |
Number of predictors |
GV |
Gating variables |
BEV |
Branch-Exclusive Variables |
Thresh |
Threshold for Gates |
Direc |
Direction of Gates ( 1 means add variable if bigger than thresh) |
The list containing the Variable Availability structure
#This function can be used to set up the variable availability structure.
#Suppose we want to fit a regular decision tree on a data set containing d predictors
d <- 10
VA <- ForgeVA(d,1,0,0,0)
#Suppose now that predictor x5 is a binary gating variable for x4
#such that x4 is available if x5 = 1
GV <- 5 #The gating variable
BEV <- 4 #The Branch-Exclusive variable
Tresh = 0.5 #Value between 0 and 1
Direc = 1 #X4 is available if X5 is bigger than Tresh
VA <- ForgeVA(d,GV,BEV,Tresh,Direc)