# xtsExtra: Extensions to xts during GSOC-2012
#
# Copyright (C) 2012 Michael Weylandt: michael.weylandt@gmail.com
#
# 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 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/>.
# Not at all committed to this --
# should we use inner joins/merges first? Date alignment like xts? Both? Neither?
Ops.xtsdf <- function(e1, e2 = NULL){
# Would be much happier to do this without ever using as.df for speed
as.xtsdf(match.fun(.Generic)(as.data.frame(e1), e2), order.by = index(e1))
}
# This one seems solid
Math.xtsdf <- function(x, ...){
# Would be much happier to do this without ever using as.df for speed
.Class <- "data.frame"
as.xtsdf(NextMethod(.Generic), order.by = index(x))
}
Summary.xtsdf <- function(..., na.rm){
do.call(match.fun(.Generic), c(lapply(..., as.data.frame), na.rm = na.rm))
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.