Enum ProcessType

pub enum ProcessType {
    Default,
    Update,
}

A type of boosting process to run.

Variants

Default

The normal boosting process which creates new trees.

Update

Starts from an existing model and only updates its trees. In each boosting iteration, a tree from the initial model is taken, a specified sequence of updater plugins is run for that tree, and a modified tree is added to the new model. The new model would have either the same or smaller number of trees, depending on the number of boosting iteratons performed. Currently, the following built-in updater plugins could be meaningfully used with this process type: ‘refresh’, ‘prune’. With ‘update’, one cannot use updater plugins that create new trees.

Trait Implementations

impl Clone for ProcessType

fn clone(&self) -> ProcessType

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for ProcessType

fn default() -> ProcessType

Returns the “default value” for a type.

impl ToString for ProcessType

fn to_string(&self) -> String

Converts the given value to a String.