Returns the configurations by the iteration in which they were executed.

Usage

getConfigurationByIteration(iraceResults, iterations, drop.metadata = FALSE)

Arguments

iraceResults: list()|character(1)
Object created by irace and typically saved in the log file irace.Rdata. If a character string is given, then it is interpreted as the path to the log file from which the iraceResults object will be loaded.
iterations: (integer())
The iteration number or a vector of iteration numbers from where the configurations should be obtained. Negative values start counting from the last iteration.
drop.metadata: logical(1)
Remove metadata, such as the configuration ID and the ID of the parent, from the returned configurations. See removeConfigurationsMetaData().

Value

A data frame containing the elite configurations required.

Author

Manuel López-Ibáñez and Leslie Pérez Cáceres

Examples

log_file <- system.file("exdata/irace-acotsp.Rdata", package="irace", mustWork=TRUE)
getConfigurationByIteration(log_file, iterations = c(-2, -1), drop.metadata = TRUE)
#>     algorithm localsearch  alpha   beta    rho ants nnls q0 dlb rasrank
#> 117        as           3 3.8799 2.5467 0.9491    5   16 NA   1      NA
#> 119       ras           3 3.2040 1.9474 0.9529    6   13 NA   1      92
#> 147       ras           3 3.7898 2.8028 0.6867    5   16 NA   0      81
#> 158       ras           3 2.3916 1.0655 0.7257    9   10 NA   1      82
#> 162        as           3 4.9169 3.9196 0.8228    5   19 NA   1      NA
#> 163        as           3 3.0685 2.0363 0.7901    9   12 NA   1      NA
#> 165        as           3 4.9286 3.4619 0.8553    5   18 NA   1      NA
#> 169       ras           3 2.1667 0.3732 0.6495    6    9 NA   1      68
#> 170        as           3 3.0328 2.9667 0.7722    8   14 NA   1      NA
#>     elitistants time
#> 117          NA    5
#> 119          NA    5
#> 147          NA    5
#> 158          NA    5
#> 162          NA    5
#> 163          NA    5
#> 165          NA    5
#> 169          NA    5
#> 170          NA    5