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
#> 111        as           3 4.2370 2.4678 0.8228    7   25 NA   1      NA
#> 158        as           3 4.0814 1.8930 0.8547    8   15 NA   1      NA
#> 139        as           3 2.9692 1.2846 0.8017    7   12 NA   1      NA
#> 134        as           3 3.9507 2.6450 0.7168    7   22 NA   1      NA
#> 161        as           3 3.7278 2.5374 0.7533    6   21 NA   1      NA
#> 166        as           3 3.9750 0.9634 0.7155    8   21 NA   1      NA
#> 167        as           3 4.5177 4.2528 0.9361    8   25 NA   1      NA
#>     elitistants time
#> 111          NA    5
#> 158          NA    5
#> 139          NA    5
#> 134          NA    5
#> 161          NA    5
#> 166          NA    5
#> 167          NA    5