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output: md_document: variant: markdown_github
Simple Random Search function for the smoof and ParamHelpers ecosystem with termination criteria and parallelization.
We recommend to install the official release version:
install.packages("randomsearch")
For experimental use you can install the latest development version:
devtools::install_github("jakob-r/randomsearch")
obj.fun = makeSingleObjectiveFunction(
fn = function(x) x[1]^2 + sin(x[2]),
par.set = makeNumericParamSet(len = 2, lower = -1, upper = 2),
minimize = TRUE
)
res = randomsearch(obj.fun, max.evals = 10)
ind = getOptPathBestIndex(res)
getOptPathEl(res, ind)
## $x
## $x$x
## [1] -0.2617368 -0.8738214
##
##
## $y
## y
## -0.6982813
##
## $dob
## [1] 9
##
## $eol
## [1] NA
##
## $exec.time
## [1] 0
as.data.frame(res)
## x1 x2 y dob eol exec.time
## 1 -0.13726744 1.3649154 0.9977236 1 NA 0.001
## 2 0.22693077 1.6490522 1.0484371 2 NA 0.002
## 3 1.82140185 -0.8633305 2.5574934 3 NA 0.000
## 4 0.58431646 1.6772571 1.3357641 4 NA 0.000
## 5 0.65430504 0.3698442 0.7895853 5 NA 0.000
## 6 1.87050004 0.3600025 3.8510469 6 NA 0.000
## 7 1.03271191 0.7179002 1.7242985 7 NA 0.000
## 8 -0.69122595 1.6994749 1.4695256 8 NA 0.000
## 9 -0.26173680 -0.8738214 -0.6982813 9 NA 0.000
## 10 -0.01623784 1.8635109 0.9577278 10 NA 0.000
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