#
# xts: eXtensible time-series
#
# Copyright (C) 2008 Jeffrey A. Ryan jeff.a.ryan @ gmail.com
#
# Contributions from Joshua M. Ulrich
#
# 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#' @rdname align.time
adj.time <-
function(x, ...) {
tr <- match.call(expand.dots=FALSE)$...
if(length(tr) < 1) return(x)
oClass <- class(x)
x <- as.POSIXlt(x)
ntime <- as.environment(unclass(x))
lapply(tr, function(T) {
assign(all.vars(T), with(x, eval(T)), envir=ntime)
})
x <- structure(list(
sec=ntime$sec, min=ntime$min, hour=ntime$hour,
mday=ntime$mday, month=ntime$mon, year=ntime$year,
wday=ntime$wday, yday=ntime$yday,isdst=ntime$isdst), tzone=attr(x,"tzone"),
class=c("POSIXlt","POSIXt"))
do.call(paste('as',oClass[1],sep='.'), list(x))
}
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