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# This R package 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 R package 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 PURPOSE. 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 R package; if not, write to the
# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
################################################################################
# MEHODS: DESCRIPTION:
# Ops.timeDate Group 'Ops' operations on 'timeDate' objects
# +.timeDate Performs + operation on 'timeDate' objects
# -.timeDate Performs - operation on 'timeDate' objects
################################################################################
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("Ops", c("timeDate", "timeDate"),
function(e1, e2)
{
# A function implemented by Diethelm Wuertz and Yohan Chalabi
# Description:
# Uses group 'Ops' generic functions for 'timeDate' objects
# Arguments:
# e1 - an object of class 'timeDate'
# e2 - an object of class 'timeDate'
# Value:
# Returns the 'Ops' grouped object.
# FUNCTION:
ans <- callGeneric(e1@Data, e2@Data)
if (inherits(ans, "POSIXt"))
ans <- timeDate(as.character(ans),
zone = "GMT", FinCenter = e1@FinCenter)
# Return Value:
ans
})
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("+", c("timeDate", "numeric"),
function(e1, e2)
{
# A function implemented by Yohan Chalabi and Diethelm Wuertz
ans <- callGeneric(e1@Data, e2)
ans <- timeDate(ans, zone = "GMT", FinCenter = e1@FinCenter)
# Return Value:
ans
})
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("+", c("numeric", "timeDate"),
function(e1, e2)
{
# A function implemented by Yohan Chalabi and Diethelm Wuertz
ans <- callGeneric(e1, e2@Data)
ans <- timeDate(ans, zone = "GMT", FinCenter = e2@FinCenter)
# Return Value:
ans
})
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("+", c("timeDate", "timeDate"),
function(e1, e2)
{
# A function implemented by Yohan Chalabi and Diethelm Wuertz
stop("binary '+' is not defined for \"timeDate\" objects")
})
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("-", c("timeDate", "numeric"),
function(e1, e2)
{
# A function implemented by Yohan Chalabi and Diethelm Wuertz
ans <- callGeneric(e1@Data, e2)
ans <- timeDate(ans, zone = "GMT", FinCenter = e1@FinCenter)
# Return Value:
ans
})
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("-", c("numeric", "timeDate"),
function(e1, e2)
{
# A function implemented by Yohan Chalabi and Diethelm Wuertz
stop("Can only subtract from timeDate objects")
})
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
setMethod("-", c("timeDate", "timeDate"),
function(e1, e2)
{
# A function implemented by Yohan Chalabi and Diethelm Wuertz
callGeneric(e1@Data, e2@Data)
})
################################################################################
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