unGroup: [!] Mix values of factor variable levels in equal proportions

In GegznaV/spHelper: Extension of Package `hyperSpec` and Various Convenience Functions

[!] Mix values of factor variable levels in equal proportions

Description

Mix values of factor variable levels in (approximately) equal proportions to disrupt existing structure of levels, i.e. "ungroup".

Usage

unGroup(gr, n = NULL, base = "new_group_", new.names = NULL)

Arguments

gr	A vector indicating original groups.
n	Number of new groups. If NULL, default number is used which is either nlevels(gr) or nlevels(gr)+1, if NA's are presented (see "Details" section).
base	Base for names of new groups. Default is "new_group_".
new.names	Labels for new groups. If value is not NULL, n and base are ignored.

Details

Default number of new groups n is equal to number of factor levels. n = nlevels(gr). If NA's exist, they are treated as one more additional group thus n = nlevels(gr) + 1.

Value

A vertor with new groups, which are a mix of proportionally distributed (ungrouped) original groups.

Author(s)

Vilmantas Gegzna

See Also

Other spHelper utilities: IQR_outliers(), expr2text(), mad_outliers(), rmExpr(), sd_outliers(), subt(), uncall()

Examples

gr <- Scores2$gr

# -------------------------------------------------------
set.seed(1)
newGr <- unGroup(gr)
table(gr,newGr, useNA = "ifany")

# NA's are treated as an additional level ---------------
gr[5:10] <- NA

set.seed(1)
newGr <- unGroup(gr)
table(gr,newGr, useNA = "ifany")

GegznaV/spHelper documentation built on April 16, 2023, 1:42 p.m.