Get indices of pareto front of optimization path.

Get indices of pareto front of optimization path.

getOptPathParetoFront(
  op,
  y.names = op$y.names,
  dob = op$env$dob,
  eol = op$env$eol,
  index = FALSE
)

Arguments

op	OptPath Optimization path.
y.names	character Names of performance measures to construct pareto front for. Default is all performance measures.
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.
index	(logical(1)) Return indices into path of front or y-matrix of nondominated points? Default is FALSE.

Value

matrix | integer. Either matrix (with named columns) of points of front in objective space or indices into path for front.

See also

Other optpath: OptPath, addOptPathEl(), getOptPathBestIndex(), getOptPathCols(), getOptPathCol(), getOptPathDOB(), getOptPathEOL(), getOptPathEl(), getOptPathErrorMessages(), getOptPathExecTimes(), getOptPathLength(), getOptPathX(), getOptPathY(), setOptPathElDOB(), setOptPathElEOL()

Examples

ps = makeParamSet(makeNumericParam("x"))
op = makeOptPathDF(par.set = ps, y.names = c("y1", "y2"), minimize = c(TRUE, TRUE))
addOptPathEl(op, x = list(x = 1), y = c(5, 3))
addOptPathEl(op, x = list(x = 2), y = c(2, 4))
addOptPathEl(op, x = list(x = 3), y = c(9, 4))
addOptPathEl(op, x = list(x = 4), y = c(4, 9))
as.data.frame(op)
#>   x y1 y2 dob eol
#> 1 1  5  3   1  NA
#> 2 2  2  4   2  NA
#> 3 3  9  4   3  NA
#> 4 4  4  9   4  NA
getOptPathParetoFront(op)
#>   y1 y2
#> 1  5  3
#> 2  2  4
getOptPathParetoFront(op, index = TRUE)
#> [1] 1 2