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#
# File: get.option.types.R
# Author: Zhenghua Nie
# Date: Mon 16 May 2011
#
# We use ipoptr developed by Jelmer Ypma as the prototype of this package.
# Some code is copied and edited from ipoptr.
# Please reference the license of ipoptr.
#
# This function converts a list with nomad options into
# three sub-lists, where the options are sorted into
# the different value types (integer, numeric, string).
#
# Input: list of nomad options and their values
# Output: list containing three sub-lists by type with nomad options and their values
#
# Copyright (C) 2011 Zhenghua Nie. All Rights Reserved.
# This code is published under GNU GENERAL PUBLIC LICENSE.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed WITHOUT ANY WARRANTY. See the
# GNU General Public License for more details.
#
# If you do not have a copy of the GNU General Public License,
# write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
get.option.types <- function(opts) {
# define types of nomad options, we should add all options here.
# we may not need this, we can set all of them as string because we
# just write all options into a file, then nomad will read it.
# I commented some lines, then everything is string.
nomad.option.types <- list(
"DISPLAY_DEGREE"="string",
"MAX_BB_EVAL"="integer",
"MIN_POLL_SIZE"="numeric",
"MIN_MESH_SIZE"="numeric",
"INITIAL_MESH_SIZE"="string"
)
# initialize list with options sorted by type
converted.opts <- list( "integer"=list(), "string"=list(), "numeric"=list() )
is.wholenumber <- function(x, tol = .Machine$double.eps^0.5) abs(x - round(x)) < tol
# check if we have at least 1 element in the list, otherwise the
# loop runs from 1 to down 0 and we get errors
if ( length( opts ) > 0 ) {
# loop over all options and give them the correct type
for ( i in 1:length( opts ) ) {
# tmp.type <- nomad.option.types[[match( names(opts)[i], names(nomad.option.types) )]]
# if ( is.null( tmp.type ) ) {
# determine type
# if ( is.character(opts[[i]]) ) {
tmp.type <- "string"
# } else if ( is.wholenumber(opts[[i]]) ) {
# tmp.type <- "integer"
# } else {
# tmp.type <- "numeric"
# }
# cat( paste( "Warning: ", names(opts)[i], " is not a recognized option, we try to pass it to nomad as ", tmp.type, "\n" ) )
# }
if ( tmp.type=="string" ) {
converted.opts$string[[ names(opts)[i] ]] <- as.character(opts[[i]])
} else if ( tmp.type=="integer" ) {
converted.opts$integer[[ names(opts)[i] ]] <- as.integer(opts[[i]])
} else if ( tmp.type=="numeric" ) {
converted.opts$numeric[[ names(opts)[i] ]] <- as.numeric(opts[[i]])
} else {
stop(paste("Type of option ", names(opts)[i], " not recognized"))
}
}
}
return ( converted.opts )
}
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