Combo filter
Filter combining univariate (t-test or anova) filtering and reliefF filtering in equal measure.
combo_filter(y, x, nfilter, type = c("index", "names", "full"), ...)
y: Response vector
x: Matrix or dataframe of predictors
nfilter: Number of predictors to return, using 1/2 from ttest_filter
or anova_filter and 1/2 from relieff_filter. Since unique is applied, the final number returned may be less than nfilter.
type: Type of vector returned. Default "index" returns indices, "names" returns predictor names, "full" returns full output.
...: Optional arguments passed via relieff_filter to CORElearn::attrEval
Integer vector of indices of filtered parameters (type = "index") or character vector of names (type = "names") of filtered parameters. If type
is "full" a list containing full outputs from either ttest_filter or anova_filter and relieff_filter is returned.