mlr3misc: map_values – R documentation

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map_values

Replace Elements of Vectors with New Values

Replaces all values in x which match old with values in new. Values are matched with base::match().

map_values(x, old, new)

`x`	(`vector())`.
`old`	(`vector()`) Vector with values to replace.
`new`	(`vector()`) Values to replace with. Will be forced to the same length as `old` with `base::rep_len()`.

(vector()) of the same length as x.

x = letters[1:5]

# replace all "b" with "_b_", and all "c" with "_c_"
old = c("b", "c")
new = c("_b_", "_c_")
map_values(x, old, new)

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