Screener Class An S4 class providing the methods to perform a features screening.

The object consists of 3 slots

Constructor for the S4 Screener object.

Usage

Screener(id, screener, parameters, logger = Logger(verbose = F))

Arguments

id

a name to identify the screener. If screening method is one of the supported by renoir, the constructor will automatically select a screener. See supported_screening_methods() for the supported methods.

screener

(optional) function to screen the data for features selection. Used if id is not one of the supported by renoir. If screener is provided it must conform to the renoir common interface, and must have the following formal arguments:

x: the input matrix, where rows are observations and columns are variables.
y: the response variable. Its number of rows must match the number of rows of x.
weights: priors of the observations
resp.type: the response type
observations: indices of observations to keep
...: additional arguments

The output must be a Screened object, where the slot score stores the feature scores with the same order as in x

parameters

list containing the parameters to fix for the chosen screening method

logger

a Logger

Details

Constructor for the S4 Screener object.

Slots

id: a name to identify the screener
screener: screener function
parameters: list containing the parameters for the chosen screening method
logger: a Logger

Author

Alessandro Barberis