Level_1 Level_2 Level_3 Level_4 Level_5 Level_6 Description Required Example
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