Description Usage Arguments Value Note References Examples

View source: R/tuning_parameters.R

Creates `screen_control`

object for
controlling how feature selection
will be carried out on each module.

1 2 | ```
screen_control(drop_fraction = 0.25, keep_fraction = 0.05,
mtry_factor = 1, min_ntree = 500, ntree_factor = 1)
``` |

`drop_fraction` |
A number between 0 and 1. Percentage of features dropped at each iteration. |

`keep_fraction` |
A number between 0 and 1. Proportion of features from each module that are retained from screening step. |

`mtry_factor` |
In the case of regression, |

`min_ntree` |
Minimum number of trees grown in each random forest. |

`ntree_factor` |
A number greater than 1. |

An object of type screen_control.

This work was partially funded by NSF IIS 1251151 and AMFAR 8721SC.

Conn, D., Ngun, T., Ramirez C.M., Li, G. (2019).
"Fuzzy Forests: Extending Random Forest Feature Selection for Correlated, High-Dimensional Data."
*Journal of Statistical Software*, **91**(9).
doi: 10.18637/jss.v091.i09

1 2 3 4 5 6 7 8 9 10 | ```
drop_fraction <- .25
keep_fraction <- .1
mtry_factor <- 1
min_ntree <- 5000
ntree_factor <- 5
screen_params <- screen_control(drop_fraction=drop_fraction,
keep_fraction=keep_fraction,
mtry_factor=mtry_factor,
min_ntree=min_ntree,
ntree_factor=ntree_factor)
``` |

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