Argument of: ranger::ranger

Handling of unordered factor covariates. One of 'ignore', 'order' and 'partition'. For the "extratrees" splitrule the default is "partition" for all other splitrules 'ignore'. Alternatively TRUE (='order') or FALSE (='ignore') can be used. See below for details.

Argument of: ranger::ranger

Scale permutation importance by standard error as in (Breiman 2001). Only applicable if permutation variable importance mode selected.

Argument of: ranger::ranger

Save how often observations are in-bag in each tree.

Argument of: ranger::ranger

Number of threads. Default is number of CPUs available.

Argument of: ranger::ranger

Use memory saving (but slower) splitting mode. No effect for survival and GWAS data. Warning: This option slows down the tree growing, use only if you encounter memory problems.

Argument of: ranger::ranger

Show computation status and estimated runtime.

Argument of: ranger::ranger

Random seed. Default is NULL, which generates the seed from R. Set to 0 to ignore the R seed.

Defined as: mean(y), where y is the vector of costs for the predicted classes.