cb.save.model: Callback closure for saving a model file.
In xgboost: Extreme Gradient Boosting

cb.save.model

R Documentation

Callback closure for saving a model file.

Callback closure for saving a model file.

cb.save.model(save_period = 0, save_name = "xgboost.model")

`save_period`	save the model to disk after every `save_period` iterations; 0 means save the model at the end.
`save_name`	the name or path for the saved model file. It can contain a `sprintf` formatting specifier to include the integer iteration number in the file name. E.g., with `save_name` = 'xgboost_ the file saved at iteration 50 would be named "xgboost_0050.model".

This callback function allows to save an xgb-model file, either periodically after each save_period's or at the end.

Callback function expects the following values to be set in its calling frame: bst, iteration, begin_iteration, end_iteration.