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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:
# start.timeDate Extracts the first entry of a 'timeDate' object
# end.timeDate Extracts the last entry of a 'timeDate' object
# min.timeDate Extracts the smallest entry of a 'timeDate' object
# max.timeDate Extracts the largest entry of a 'timeDate' object
# range.timeDate Extracts range of a 'timeDate' object
################################################################################
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
start.timeDate <-
function(x, ...)
{
# A function implemented by Diethelm Wuertz and Yohan Chalabi
# Description:
# Extracts the first object of a 'timeDate' vector
# Arguments:
# x - a 'timeDate' object
# Value:
# Returns from 'x' the earliest entry as an object of class
# 'timeDate'.
# FUNCTION:
# Return Value:
timeDate(min(as.POSIXct(x)), zone = "GMT", FinCenter = x@FinCenter)
}
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
end.timeDate <-
function(x, ...)
{
# A function implemented by Diethelm Wuertz and Yohan Chalabi
# Description:
# Extracts the last object of a 'timeDate' vector
# Arguments:
# x - a 'timeDate' object
# Value:
# Returns an object of class 'timeDate'.
# FUNCTION:
# Return Value:
timeDate(max(as.POSIXct(x)), zone = "GMT", FinCenter = x@FinCenter)
}
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
min.timeDate <-
function(..., na.rm = FALSE)
{
# DW: is this ok ??
start.timeDate(...)
}
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
max.timeDate <-
function(..., na.rm = FALSE)
{
# DW: is this ok ??
end.timeDate(...)
}
# ---------------------------------------------------------------------------- #
# Roxygen Tags
#' @export
# ---------------------------------------------------------------------------- #
range.timeDate <-
function(..., na.rm = FALSE)
{
c(start(..., na.rm = na.rm), end(..., na.rm = na.rm))
}
################################################################################
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