https://github.com/cran/Matrix
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Tip revision: eb4c20765b4b752635d8622a4a369347b4b69bbf authored by Douglas Bates on 11 July 2005, 00:00:00 UTC
version 0.97-3
Tip revision: eb4c207
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"))
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