+1 for a specific standalone BandedMatrices package. Once it's up and running and registered, could even move the Lapack bindings for gb* functions out to the package (and pb* and sb* if you also have symmetric), since we don't have a type for them in base. I think it'll be important to work out how to get base to support additional sparse and structured matrix formats well, without needing to have the types themselves in base.
On Wednesday, March 23, 2016 at 2:43:16 PM UTC-7, Sheehan Olver wrote: > > It would be great to have a broader SparseFormats.jl package. > > Maybe in the time being I'll start it as BandedMatrices.jl (since that's > already implemented) which can be renamed later. > > Sheehan > > Sent from my iPhone > > On 24 Mar 2016, at 03:07, Christoph Ortner <christop...@gmail.com > <javascript:>> wrote: > > Here is a short list that in the long-run would be useful: > * compressed row > * triplet > * block-sparse matrices > (* linked-list variants of CC and CR??) > > C > > On Wednesday, 23 March 2016 13:53:30 UTC, Tim Holy wrote: >> >> Base has UniformScaling, Diagonal, Bidiagonal, Tridiagonal, >> SymTridiagonal, >> UpperTriangular, LowerTriangular, in addition to SparseVector and >> SparseMatrixCSC. But not general banded. >> >> --Tim >> >> On Wednesday, March 23, 2016 04:19:22 AM Christoph Ortner wrote: >> > I'd be interested as well; more generally: does Julia still only have >> CCS >> > implemented? For me it would sound productive to start a general >> > SparseFormats.jl (or similar) package and collect various other >> formats, >> > which could eventually be incorporated into Base or a standard-library. >> > >> > Christoph >> >>
