Nothing
# /usr/bin/r
#
# Copyright 2015-2015 Steven E. Pav. All Rights Reserved.
# Author: Steven E. Pav
#
# This file is part of madness.
#
# madness is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# madness 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with madness. If not, see <http://www.gnu.org/licenses/>.
#
# Created: 2015.11.18
# Copyright: Steven E. Pav, 2015
# Author: Steven E. Pav <shabbychef@gmail.com>
# Comments: Steven E. Pav
#' @include AllClass.r
#' @include utils.r
NULL
## MM: do _NOT_ setGeneric() on existing functions! (==> conflict other pkg methods!)
# setGeneric('solve', function(a,b) standardGeneric('solve'))
# solve#FOLDUP
#' Basic Matrix Inversion
#'
#' @include AllClass.r
#' @param a,b \code{madness} object or matrix value.
#' @inheritParams base::solve
#' @name solve
#' @template etc
#' @exportMethod solve
#' @rdname solve
#' @aliases solve,ANY,missing-method
setMethod("solve", signature(a="ANY",b="missing"),
function(a,b) { base::solve(a) })
#' @rdname solve
#' @aliases solve,madness,missing-method
setMethod("solve", signature(a="madness",b="missing"),
function(a,b) {
xtag <- a@xtag
val <- solve(a@val)
dvdx <- - (t(val) %x% val) %*% a@dvdx
vtag <- paste0('solve(',a@vtag,')')
varx <- a@varx
new("madness", val=val, dvdx=dvdx, vtag=vtag, xtag=xtag, varx=varx)
})
#' @rdname solve
#' @aliases solve,madness,madness-method
setMethod("solve", signature(a="madness",b="madness"),
function(a,b) {
xtag <- .check_common_xtag(a,b)
val <- solve(a@val,b@val)
# wasteful in that we invert twice, but whatever.
ainv <- solve(a@val)
dvdx <- (diag(dim(val)[2]) %x% ainv) %*% b@dvdx -
(t(val) %x% ainv) %*% a@dvdx
vtag <- paste0('solve(',a@vtag,', ',b@vtag,')')
varx <- .get_a_varx(a,b)
new("madness", val=val, dvdx=dvdx, vtag=vtag, xtag=xtag, varx=varx)
})
#' @rdname solve
#' @aliases solve,madness,array-method
setMethod("solve", signature(a="madness",b="array"),
function(a,b) {
xtag <- a@xtag
val <- solve(a@val,b)
# wasteful in that we invert twice, but whatever.
dvdx <- - (t(val) %x% solve(a@val)) %*% a@dvdx
vtag <- paste0('solve(',a@vtag,', numeric)')
varx <- a@varx
new("madness", val=val, dvdx=dvdx, vtag=vtag, xtag=xtag, varx=varx)
})
#' @rdname solve
#' @aliases solve,madness,ANY-method
setMethod("solve", signature(a="madness",b="ANY"),
function(a,b) {
xtag <- a@xtag
val <- solve(a@val,b)
# wasteful in that we invert twice, but whatever.
dvdx <- - (t(val) %x% solve(a@val)) %*% a@dvdx
vtag <- paste0('solve(',a@vtag,', numeric)')
varx <- a@varx
new("madness", val=val, dvdx=dvdx, vtag=vtag, xtag=xtag, varx=varx)
})
#' @rdname solve
#' @aliases solve,array,madness-method
setMethod("solve", signature(a="array",b="madness"),
function(a,b) {
xtag <- b@xtag
val <- solve(a,b@val)
# wasteful in that we invert twice, but whatever.
dvdx <- (diag(dim(val)[2]) %x% solve(a)) %*% b@dvdx
vtag <- paste0('solve(numeric, ',b@vtag,')')
varx <- b@varx
new("madness", val=val, dvdx=dvdx, vtag=vtag, xtag=xtag, varx=varx)
})
#' @rdname solve
#' @aliases solve,ANY,madness-method
setMethod("solve", signature(a="ANY",b="madness"),
function(a,b) {
xtag <- b@xtag
val <- solve(a,b@val)
# wasteful in that we invert twice, but whatever.
dvdx <- (diag(dim(val)[2]) %x% solve(a)) %*% b@dvdx
vtag <- paste0('solve(numeric, ',b@vtag,')')
varx <- b@varx
new("madness", val=val, dvdx=dvdx, vtag=vtag, xtag=xtag, varx=varx)
})
#UNFOLD
#for vim modeline: (do not edit)
# vim:fdm=marker:fmr=FOLDUP,UNFOLD:cms=#%s:syn=r:ft=r
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.