irace (version 3.4.1)

irace.cmdline: irace.cmdline

Description

irace.cmdline starts irace using the parameters of the command line used to invoke R.

Usage

irace.cmdline(argv = commandArgs(trailingOnly = TRUE))

Value

(invisible(data.frame))

A data frame with the set of best algorithm configurations found by irace. The data frame has the following columns:

• .ID. : Internal id of the candidate configuration.

• Parameter names : One column per parameter name in parameters.

• .PARENT. : Internal id of the parent candidate configuration.

Additionally, this function saves an R data file containing an object called iraceResults. The path of the file is indicated in scenario$logFile. The iraceResults object is a list with the following structure:

scenario

The scenario R object containing the irace options used for the execution. See defaultScenario for more information.

parameters

The parameters R object containing the description of the target algorithm parameters. See readParameters.

allConfigurations

The target algorithm configurations generated by irace. This object is a data frame, each row is a candidate configuration, the first column (.ID.) indicates the internal identifier of the configuration, the following columns correspond to the parameter values, each column named as the parameter name specified in the parameter object. The final column (.PARENT.) is the identifier of the configuration from which model the actual configuration was sampled.

allElites

A list that contains one element per iteration, each element contains the internal identifier of the elite candidate configurations of the corresponding iteration (identifiers correspond to allConfigurations$.ID.).

iterationElites

A vector containing the best candidate configuration internal identifier of each iteration. The best configuration found corresponds to the last one of this vector.

experiments

A matrix with configurations as columns and instances as rows. Column names correspond to the internal identifier of the configuration (allConfigurations$.ID.).

experimentLog

A matrix with columns iteration, instance, configuration, time. This matrix contains the log of all the experiments that irace performs during its execution. The instance column refers to the index of the scenario$instancesList data frame. Time is saved ONLY when reported by the targetRunner.

softRestart

A logical vector that indicates if a soft restart was performed on each iteration. If FALSE, then no soft restart was performed.

state

A list that contains the state of irace, the recovery is done using the information contained in this object.

testing

A list that contains the testing results. The elements of this list are: experiments a matrix with the testing experiments of the selected configurations in the same format as the explained above and seeds a vector with the seeds used to execute each experiment.

Arguments

argv

(character())
The arguments provided on the R command line as a character vector, e.g., c("--scenario", "scenario.txt", "-p", "parameters.txt"). Using the default value (not providing the parameter) is the easiest way to call irace.cmdline.

Author

Manuel López-Ibáñez and Jérémie Dubois-Lacoste

Details

The function reads the parameters given on the command line used to invoke R, finds the name of the scenario file, initializes the scenario from the file (with the function readScenario) and possibly from parameters passed on the command line. It finally starts irace by calling irace.main.

See Also

irace.main to start irace with a given scenario.