general 





Top level for general info about the model 
Yes 


model 




Name of the package 
Yes 
ranger 

version 




Use: 2 
Yes 
2 

type 




Use: tree 
Yes 
tree 

mode 




Only for Cubist 

ifelse 

divisor 




Only for Cubist, divide the entire formula by 

3 

is_glm 




Boolean, to identify a glm model (MARS models) 
Yes 
0 
trees 





Top level for trees 
Yes 


[tree #] 




Index tree number, one per tree 
Yes 



[branch #] 



Index branch number, one per branch 
Yes 




prediction 


Estimate value 
Yes 
versicolor 



path 


Top level indicating a path 
Yes 





[[path #]] 

Index path number 
Yes 






type 
Type of field, use: ‘conditional’, and ‘ordinary’ for
intercept 
Yes 
conditional 





col 
Column name 
Yes 
Petal.Length 





val 
Value of the entry 
Yes 
2.45 





op 
Operator for formula 
Yes 
equal 





is_intercept 
Only for Cubist 

0 
terms 





Top level for terms 
MARS only 


[index] 




Index number, one entry per term 
MARS only 
[[3]] 


label 



Name of the field to be used 
MARS only 
char_cyl6 


coef 



Coefficient value 
MARS only 
4.26 


is_intercept 



Boolean, indicates if it is intercept 
MARS only 
0 


fields 



Top level for fields impacted by term 
MARS only 




[index] 


Index number, one entry per field 
MARS only 
[[1]] 




type 

Type of field, use: ‘conditional’, and ‘ordinary’ for
intercept 
MARS only 
conditional 




col 

Column name 
MARS only 
char_cyl 




val 

Value of the entry 
MARS only 
cyl6 




op 

Operation, use: equal 
MARS only 
equal 