irace (version 3.4.1)

read_pcs_file: read_pcs_file

Description

Read parameters in PCS (AClib) format and write them in irace format.

Usage

read_pcs_file(file, digits = 4, debugLevel = 0, text)

Value

A string representing the parameters in irace format.

Arguments

file

(character(1))
Filename containing the definitions of the parameters to be tuned.

digits

The number of decimal places to be considered for the real parameters.

debugLevel

(integer(1))
Larger values produce more verbose output.

text

(character(1))
If file is not supplied and this is, then parameters are read from the value of text via a text connection.

Author

Manuel López-Ibáñez

Details

Either file or text must be given. If file is given, the parameters are read from the file file. If text is given instead, the parameters are read directly from the text character string. In both cases, the parameters must be given (in text or in the file whose name is file) in the expected form. See the documentation for details. If none of these parameters is given, irace will stop with an error.

Examples

 ## Read the parameters directly from text
 pcs.table <- '
 # name       values               [conditions (using R syntax)]
 algorithm    {as,mmas,eas,ras,acs}[as]
 localsearch  {0, 1, 2, 3}[0]
 alpha        [0.00, 5.00][1]
 beta         [0.00, 10.00][1]
 rho          [0.01, 1.00][0.95]
 ants         [5, 100][10]i
 q0           [0.0, 1.0][0]
 rasrank      [1, 100][1]i
 elitistants  [1, 750][1]i
 nnls         [5, 50][5]i
 dlb          {0, 1}[1] 
 Conditionals:
 q0 | algorithm in {acs}
 rasrank | algorithm in {ras}
 elitistants | algorithm in {eas}
 nnls | localsearch in {1,2,3}
 dlb | localsearch in {1,2,3}
 '
 parameters.table <- read_pcs_file(text=pcs.table)
 parameters <- readParameters(text=parameters.table)
 str(parameters)