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#### Logical Sparse Triangular Matrices in Compressed column-oriented format
setAs("ntCMatrix", "matrix",
function(from) as(as(from, "ngCMatrix"), "matrix"))
setAs("matrix", "ntCMatrix",
function(from) as(as(from, "dtCMatrix"), "ntCMatrix"))
setAs("ntCMatrix", "ngCMatrix",
function(from) new("ngCMatrix", i = from@i, p = from@p,
Dim = from@Dim, Dimnames = from@Dimnames))
setAs("ntCMatrix", "dMatrix", # < instead of "dtCMatrix"
function(from) new("dtCMatrix", i = from@i, p = from@p,
x = rep.int(1, length(from@i)), uplo = from@uplo,
diag = from@diag,
Dim = from@Dim, Dimnames = from@Dimnames))
## setAs("ntCMatrix", "generalMatrix",
## function(from) ......)
setMethod("image", "ntCMatrix",
function(x, ...) {
x <- as(as(x, "dtCMatrix"), "dgTMatrix")
callGeneric()
})
## setMethod("t", signature(x = "ntCMatrix"),
## function(x) .Call(ntCMatrix_trans, x),
## valueClass = "ntCMatrix")
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