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
#> 108       acs           3 1.7392 1.9072 0.7255   41   11 0.4645   1      NA
#> 119       acs           3 1.8415 1.5342 0.2492   41   10 0.7389   1      NA
#> 138       acs           3 1.2856 0.5537 0.7490   38    9 0.8335   1      NA
#> 141       acs           3 1.8949 0.1375 0.7172   41    8 0.2731   1      NA
#> 146       acs           3 2.7520 1.2268 0.4055   56    6 0.6684   1      NA
#> 153       acs           3 2.1161 0.2775 0.2473   39   10 0.5921   1      NA
#> 154       acs           3 1.5518 0.0633 0.9153   46   12 0.1593   1      NA
#> 155       acs           3 1.8244 2.5240 0.4763   24    7 0.5403   1      NA
#>     elitistants time
#> 108          NA    5
#> 119          NA    5
#> 138          NA    5
#> 141          NA    5
#> 146          NA    5
#> 153          NA    5
#> 154          NA    5
#> 155          NA    5