- Version: 0.1-0
- Status:
- License:
- Author: Drew Schmidt
An R package for packed matrix storage, including banded, symmetric, and diagonal matrices.
In addition to a few virtual classes, we offer the following S4 classes:
| Class | Description |
|---|---|
| ZeroMat | A zero matrix. Only dimension information is stored. |
| DiagMat | Diagonal matrices. Only the diagonal entries are stored. |
| GenBandMat | A general band storage matrix. Only the band elements are stored. |
| SymMat | Packed symmetric (not band) storage. Only one triangle (+ diagonal) is stored. |
The list of currently implemented methods is:
| Description | Functions |
|---|---|
| Casters | as.banded(), as.matrix(), as.symmetric() |
| Checks | isSym() |
| Transpose | xpose() |
Note that attempting to transpose a zero, diagonal, or symmetric matrix will produce an error because these are already their own transpose and there is no good reason to create a copy.
Finally, we include optimized versions of xpose() and isSym() for regular R matrices.
The development version is maintained on GitHub, and can easily be installed by any of the packages that offer installations from GitHub:
### Pick your preference
devtools::install_github("wrathematics/band")
ghit::install_github("wrathematics/band")
remotes::install_github("wrathematics/band")TODO