It's the type of the index variables. So, potentially useful to save some space by using Uint32 or Uint16 for them. Of course that reduces the maximal size of the matrix.
There is an "example" in test/sparse.jl: S1290 = SparseMatrixCSC(3, 3, Uint8[1,1,1,1], Uint8[], Int64[]) I think you have to construct it with SparseMatrixCSC, as `sparse` just uses Int. On Thu, 2014-07-10 at 13:52, Simon Byrne <[email protected]> wrote: > Out of curiosity, what is the purpose of the Ti parameter in > SparseMatrixCSC type? > > I managed to track down this old commit: > https://github.com/JuliaLang/julia/commit/a0961e5df69da9f736ac8cb54a1186433fa6c1ba > which suggests it was introduced in order to conserve space for small > matrices, but now it seems to always be the default Int type. > > -simon
