mlr3misc: which_min – R documentation

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which_min

Index of the Minimum/Maximum Value, with Correction for Ties

Description

Works similar to base::which.min()/base::which.max(), but corrects for ties. Missing values are treated as Inf for which_min and as -Inf for which_max().

Usage

which_min(x, ties_method = "random", na_rm = FALSE)

which_max(x, ties_method = "random", na_rm = FALSE)

Arguments

`x`	(`numeric()`) Numeric vector.
`ties_method`	(`character(1)`) Handling of ties. One of "first", "last" or "random" (default) to return the first index, the last index, or a random index of the minimum/maximum values.
`na_rm`	(`logical(1)`) Remove NAs before computation?

Value

(integer()): Index of the minimum/maximum value. Returns an empty integer vector for empty input vectors and vectors with no non-missing values (if na_rm is TRUE). Returns NA if na_rm is FALSE and at least one NA is found in x.

Examples

x = c(2, 3, 1, 3, 5, 1, 1)
which_min(x, ties_method = "first")
which_min(x, ties_method = "last")
which_min(x, ties_method = "random")

which_max(x)
which_max(integer(0))
which_max(NA)
which_max(c(NA, 1))

mlr3misc

Helper Functions for 'mlr3'

v0.10.0

LGPL-3

Authors

Michel Lang [cre, aut] (<https://orcid.org/0000-0001-9754-0393>), Patrick Schratz [aut] (<https://orcid.org/0000-0003-0748-6624>)

Initial release