https://github.com/cran/fBasics
Tip revision: 944271d20ffa4fb36a171791c34afaae5325f74a authored by Rmetrics Core Team on 08 February 2010, 00:00:00 UTC
version 2110.79
version 2110.79
Tip revision: 944271d
utils-getS4.R
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR Description. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General
# Public License along with this library; if not, write to the
# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
################################################################################
# FUNCTION: GENERAL EXTRACTORS FOR S4:
# getCall Extracts the call slot from a S4 object
# getModel Extracts the model slot from a S4 object
# getTitle Extracts the title slot from a S4 object
# getDescription Extracts the description slot from a S4 object
# getSlot Extracts a specified slot from a S4 object
################################################################################
getCall <-
function(object)
{
# A function implemented by Rmetrics
# Description:
# Extracts the "call" slot from an object of class 4
# Arguments:
# object - an object of class S4
# FUNCTION:
# Return Value:
getSlot(object, "call")
}
# ------------------------------------------------------------------------------
getModel <-
function(object)
{
# A function implemented by Rmetrics
# Description:
# gets the "model" slot from an object of class 4
# Arguments:
# object - an object of class S4
# FUNCTION:
# Return Value:
getSlot(object, "model")
}
# ------------------------------------------------------------------------------
getTitle <-
function(object)
{
# A function implemented by Rmetrics
# Description:
# gets the "title" slot from an object of class 4
# Arguments:
# object - an object of class S4
# FUNCTION:
# Return Value:
getSlot(object, "title")
}
# ------------------------------------------------------------------------------
getDescription <-
function(object)
{
# A function implemented by Rmetrics
# Description:
# Extracts the "description" slot from an object of class 4
# Arguments:
# object - an object of class S4
# FUNCTION:
# Return Value:
getSlot(object, "description")
}
# ------------------------------------------------------------------------------
getSlot <-
function(object, slotName)
{
# A function implemented by Rmetrics
# Description:
# Extracts the a specified slot from an object of class 4
# Arguments:
# object - an object of class S4
# slotName - the name of the slot ot be extracted from an S4 object
# FUNCTION:
# isS4
stopifnot(isS4(object))
# exists @call ?
stopifnot (any(slotNames(object) == slotName))
# Command to execute:
command = paste("object@", slotName, sep = "")
# Return Value:
eval(parse(text = command))
}
################################################################################