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#### Logical Sparse Symmetric Matrices in Triplet format
### contains = "lsparseMatrix"
setAs("lsTMatrix", "matrix",
function(from) as(as(from, "lgTMatrix"), "matrix"))
setAs("lsTMatrix", "lgCMatrix", # for diag
function(from) as(as(from, "lsCMatrix"), "lgCMatrix"))
setAs("lsTMatrix", "lgTMatrix",
function(from) .Call(lsTMatrix_as_lgTMatrix, from))
if(FALSE) # should use as(., "dMatrix")
setAs("lsTMatrix", "dsTMatrix",
function(from)
new("dsTMatrix", i = from@i, j = from@j, uplo = from@uplo,
x = as.double(from@x), # *not* just 1; from@x *can* have FALSE
Dim = from@Dim, Dimnames = from@Dimnames))
setAs("lsTMatrix", "lsyMatrix",
function(from) .Call(lsTMatrix_as_lsyMatrix, from))
setMethod("t", "lsTMatrix",
function(x)
new("lsTMatrix", Dim = x@Dim, Dimnames = x@Dimnames[2:1],
i = x@j, j = x@i, x = x@x,
uplo = if (x@uplo == "U") "L" else "U"))
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