#
# File: print.snomadr.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 prints some basic output of a snomadr
# object. The information is only available after it
# has been solved.
#
# 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
print.snomadr <- function(x, show.controls=TRUE, ...) {
cat("\nCall:\n", deparse(x$call), "\n\n", sep = "", fill=TRUE)
if (!is.null(x$call$information)) {return(NULL);}
else
{
cat( unlist(strsplit(paste( "nomad solver status:", x$status, "(", x$message, ")\n" ),' ')), fill=TRUE )
cat( paste( "Number of blackbox evaluations.....:", x$bbe, "\n" ) )
cat( paste( "Number of iterations...............:", x$iterations, "\n" ) )
# if show.controls is TRUE or FALSE, show all or none of the controls
if ( is.logical( show.controls ) ) {
# show all control variables
if ( show.controls ) {
controls.indices = 1:length(x$solution)
}
}
# if show.controls is a vector with indices, rename this vector
# and define show.controls as TRUE
if ( is.numeric( show.controls ) ) {
controls.indices = show.controls
show.controls = TRUE
}
# if solved successfully
if ( x$status == 8 || x$status == 9 || x$status == 13 ) {
cat( paste( "Optimal value of objective function: ", x$objective, "\n" ) )
if ( show.controls ) {
cat( "Optimal value of controls..........: " )
cat( x$solution[ controls.indices ], fill=TRUE)
cat("\n")
}
} else {
cat( paste( "Current value of objective function: ", x$objective, "\n" ) )
if ( show.controls ) {
cat( "Current value of controls..........: " )
cat( x$solution[ controls.indices ], fill=TRUE )
cat("\n")
}
}
cat("\n")
}
}
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