dtCMatrix.R
setMethod("t", signature(x = "dtCMatrix"),
function(x) .Call("tsc_transpose", x),
valueClass = "dtCMatrix")
setAs("dtCMatrix", "dgTMatrix",
function(from) .Call("tsc_to_dgTMatrix", from))
setAs("dtCMatrix", "dgeMatrix",
function(from) as(as(from, "dgTMatrix"), "dgeMatrix"))