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R
ParamHelpers

getOptPathBestIndex

Get index of the best element from optimization path.

Description

Get index of the best element from optimization path.

Usage

getOptPathBestIndex(
  op,
  y.name = op$y.names[1],
  dob = op$env$dob,
  eol = op$env$eol,
  ties = "last"
)

Arguments

op

OptPath
Optimization path.
y.name

(character(1))
Name of target value to decide which element is best. Default is y.names[1].
dob

integer
Vector of date-of-birth values to further subset the result. Only elements with a date-of-birth included in dob are selected. Default is all.
eol

integer
Vector of end-of-life values to further subset the result. Only elements with an end-of-life included in eol are selected. Default is all.
ties

(character(1))
How should ties be broken when more than one optimal element is found? “all”: return all indices, “first”: return first optimal element in path, “last”: return last optimal element in path, “random”: return random optimal element in path. Default is “last”.

Value

integer Index or indices into path. See ties.

See Also

Examples

ps = makeParamSet(makeNumericParam("x"))
op = makeOptPathDF(par.set = ps, y.names = "y", minimize = TRUE)
addOptPathEl(op, x = list(x = 1), y = 5)
addOptPathEl(op, x = list(x = 2), y = 3)
addOptPathEl(op, x = list(x = 3), y = 9)
addOptPathEl(op, x = list(x = 4), y = 3)
as.data.frame(op)
getOptPathBestIndex(op)
getOptPathBestIndex(op, ties = "first")
ParamHelpers

Helpers for Parameters in Black-Box Optimization, Tuning and Machine Learning

v1.14
BSD_2_clause + file LICENSE
Authors
Bernd Bischl [aut] (<https://orcid.org/0000-0001-6002-6980>), Michel Lang [aut] (<https://orcid.org/0000-0001-9754-0393>), Jakob Richter [cre, aut] (<https://orcid.org/0000-0003-4481-5554>), Jakob Bossek [aut], Daniel Horn [aut], Karin Schork [ctb], Pascal Kerschke [aut]
Initial release

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