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#### "ndenseMatrix" - virtual class of nonzero pattern dense matrices
#### ------------
#### Contains nge*; ntr*, ntp*; nsy*, nsp*; ndi*
## Nonzero Pattern -> Double {of same structure}:
setAs("ngeMatrix", "dgeMatrix", n2d_Matrix)
setAs("nsyMatrix", "dsyMatrix", n2d_Matrix)
setAs("nspMatrix", "dspMatrix", n2d_Matrix)
setAs("ntrMatrix", "dtrMatrix", n2d_Matrix)
setAs("ntpMatrix", "dtpMatrix", n2d_Matrix)
### NOTA BENE: Much of this is *very* parallel to ./ldenseMatrix.R
### ~~~~~~~~~~~~~~~~
## all need be coercable to "ngeMatrix":
setAs("nsyMatrix", "ngeMatrix", function(from)
.Call(lsyMatrix_as_lgeMatrix, from, 1:1))
setAs("ntrMatrix", "ngeMatrix", function(from)
.Call(ltrMatrix_as_lgeMatrix, from, 1:1))
setAs("ntpMatrix", "ngeMatrix",
function(from) as(as(from, "ntrMatrix"), "ngeMatrix"))
setAs("nspMatrix", "ngeMatrix",
function(from) as(as(from, "nsyMatrix"), "ngeMatrix"))
## and the reverse
setAs("ngeMatrix", "ntpMatrix",
function(from) as(as(from, "ntrMatrix"), "ntpMatrix"))
setAs("ngeMatrix", "nspMatrix",
function(from) as(as(from, "nsyMatrix"), "nspMatrix"))
## packed <-> non-packed :
setAs("nspMatrix", "nsyMatrix",
function(from)
.Call(lspMatrix_as_lsyMatrix, from, 1:1))
setAs("nsyMatrix", "nspMatrix",
function(from)
.Call(lsyMatrix_as_lspMatrix, from, 1:1))
setAs("ntpMatrix", "ntrMatrix",
function(from)
.Call(ltpMatrix_as_ltrMatrix, from, 1:1))
setAs("ntrMatrix", "ntpMatrix",
function(from)
.Call(ltrMatrix_as_ltpMatrix, from, 1:1))
### -> symmetric :
if(FALSE) ## not sure if this is a good idea ... -- FIXME?
setIs("ngeMatrix", "nsyMatrix",
test = function(obj) isSymmetric(obj),
replace = function(obj, value) { ## copy all slots
for(n in slotNames(obj)) slot(obj, n) <- slot(value, n)
})
### Alternative (at least works):
setAs("ngeMatrix", "nsyMatrix",
function(from) {
if(isSymmetric(from))
new("nsyMatrix", x = from@x, Dim = from@Dim,
Dimnames = from@Dimnames, factors = from@factors)
else stop("not a symmetric matrix")
})
setAs("ngeMatrix", "ntrMatrix",
function(from) {
if(isT <- isTriangular(from))
new("ntrMatrix", x = from@x, Dim = from@Dim,
Dimnames = from@Dimnames, uplo = attr(isT, "kind"))
## TODO: also check 'diag'
else stop("not a triangular matrix")
})
### ldense* <-> "matrix" :
## 1) "nge* :
setAs("ngeMatrix", "matrix",
function(from) array(from@x, dim = from@Dim, dimnames = from@Dimnames))
setAs("matrix", "ngeMatrix",
function(from) {
new("ngeMatrix",
x = as.logical(from),
Dim = as.integer(dim(from)),
Dimnames = .M.DN(from))
})
## 2) base others on "nge*":
setAs("matrix", "nsyMatrix",
function(from) as(as(from, "ngeMatrix"), "nsyMatrix"))
setAs("matrix", "nspMatrix",
function(from) as(as(from, "nsyMatrix"), "nspMatrix"))
setAs("matrix", "ntrMatrix",
function(from) as(as(from, "ngeMatrix"), "ntrMatrix"))
setAs("matrix", "ntpMatrix",
function(from) as(as(from, "ntrMatrix"), "ntpMatrix"))
## Useful if this was called e.g. for as(*, "nsyMatrix"), but it isn't
setAs("matrix", "ndenseMatrix", function(from) as(from, "ngeMatrix"))
setAs("ndenseMatrix", "matrix", ## uses the above l*M. -> lgeM.
function(from) as(as(from, "ngeMatrix"), "matrix"))
## dense |-> compressed :
setAs("ngeMatrix", "ngTMatrix",
function(from) {
## cheap but not so efficient:
ij <- which(as(from,"matrix"), arr.ind = TRUE) - 1:1
new("ngTMatrix", i = ij[,1], j = ij[,2],
Dim = from@Dim, Dimnames = from@Dimnames,
factors = from@factors)
})
setAs("ngeMatrix", "ngCMatrix",
function(from) as(as(from, "ngTMatrix"), "ngCMatrix"))
setMethod("as.logical", signature(x = "ndenseMatrix"),
function(x, ...) as(x, "ngeMatrix")@x)
###----------------------------------------------------------------------
setMethod("t", signature(x = "ngeMatrix"), t_geMatrix)
setMethod("t", signature(x = "ntrMatrix"), t_trMatrix)
setMethod("t", signature(x = "nsyMatrix"), t_trMatrix)
setMethod("t", signature(x = "ntpMatrix"),
function(x) as(callGeneric(as(x, "ntrMatrix")), "ntpMatrix"))
setMethod("t", signature(x = "nspMatrix"),
function(x) as(callGeneric(as(x, "nsyMatrix")), "nspMatrix"))
setMethod("!", "ntrMatrix",
function(e1) {
e1@x <- !e1@x
## And now we must fill one triangle with '!FALSE' results :
## TODO: the following should be .Call using
## a variation of make_array_triangular:
r <- as(e1, "ngeMatrix")
n <- e1@Dim[1]
coli <- rep(1:n, each=n)
rowi <- rep(1:n, n)
Udiag <- e1@diag == "U"
log.i <-
if(e1@uplo == "U") {
if(Udiag) rowi >= coli else rowi > coli
} else {
if(Udiag) rowi <= coli else rowi < coli
}
r@x[log.i] <- TRUE
r
})
setMethod("!", "ntpMatrix", function(e1) !as(e1, "ntrMatrix"))
## for the other ldense* ones
setMethod("!", "ngeMatrix",
function(e1) { e1@x <- !e1@x ; e1 })
## FIXME : this loses symmetry "nsy" and "nsp":
setMethod("!", "ndenseMatrix",
function(e1) !as(e1, "ngeMatrix"))
setMethod("|", signature(e1="ngeMatrix", e2="ngeMatrix"),
function(e1,e2) {
d <- dimCheck(e1, e2)
e1@x <- e1@x | e2@x
e1
})
setMethod("&", signature(e1="ngeMatrix", e2="ngeMatrix"),
function(e1,e2) {
d <- dimCheck(e1, e2)
e1@x <- e1@x & e2@x
e1
})
setMethod("|", signature(e1="ndenseMatrix", e2="ndenseMatrix"),
function(e1,e2) {
d <- dimCheck(e1, e2)
as(e1, "ngeMatrix") | as(e2, "ngeMatrix")
})
setMethod("&", signature(e1="ndenseMatrix", e2="ndenseMatrix"),
function(e1,e2) {
d <- dimCheck(e1, e2)
as(e1, "ngeMatrix") & as(e2, "ngeMatrix")
})
setMethod("as.vector", signature(x = "ndenseMatrix", mode = "missing"),
function(x) as(x, "ngeMatrix")@x)
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