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       acs           2 1.2881 6.4311 0.5859   10   23 0.2126   0      NA
#> 119       acs           2 1.4432 6.4746 0.4582    5   28 0.1931   0      NA
#> 123       acs           2 1.0584 5.8121 0.5587   10   35 0.2575   0      NA
#> 130       acs           2 1.5899 6.9391 0.5529    8   26 0.3796   0      NA
#> 134       acs           2 1.6144 7.8972 0.1999    8   33 0.1415   1      NA
#> 141       acs           2 1.1411 5.6044 0.7223   16   27 0.3231   0      NA
#> 142       acs           2 1.7492 5.1542 0.6186    7   26 0.1344   0      NA
#> 143       acs           2 0.6967 6.8546 0.6225    8   36 0.0928   0      NA
#> 144       acs           2 0.3108 6.3414 0.6865    7   15 0.0829   0      NA
#> 145       acs           2 1.0345 5.0647 0.4385   10   36 0.2845   0      NA
#> 146       acs           2 1.9401 9.0205 0.6431   21   21 0.2613   0      NA
#> 147       acs           2 0.8712 5.4593 0.3944    7   35 0.2770   1      NA
#> 148       acs           2 0.6575 4.0491 0.3320    8   39 0.2268   1      NA
#>     elitistants
#> 111          NA
#> 119          NA
#> 123          NA
#> 130          NA
#> 134          NA
#> 141          NA
#> 142          NA
#> 143          NA
#> 144          NA
#> 145          NA
#> 146          NA
#> 147          NA
#> 148          NA