| Title: | Block Diagonal Extraction or Replacement |
| Version: | 6.4.0 |
| Description: | Several tools for handling block-matrix diagonals and similar constructs are implemented. Block-diagonal matrices can be extracted or removed using two small functions implemented here. In addition, non-square matrices are supported. Block diagonal matrices occur when two dimensions of a data set are combined along one edge of a matrix. For example, trade-flow data in the 'decompr' and 'gvc' packages have each country-industry combination occur along both edges of the matrix. |
| Depends: | R (≥ 2.10) |
| License: | GPL-3 |
| URL: | https://qua.st/diagonals, https://github.com/bquast/diagonals |
| BugReports: | https://github.com/bquast/diagonals/issues |
| Suggests: | testthat, knitr, rmarkdown |
| VignetteBuilder: | knitr |
| RoxygenNote: | 7.1.1 |
| Encoding: | UTF-8 |
| NeedsCompilation: | no |
| Packaged: | 2022-06-19 18:16:33 UTC; bquast |
| Author: | Bastiaan Quast 
[aut, cre] |
| Maintainer: | Bastiaan Quast <bquast@gmail.com> |
| Repository: | CRAN |
| Date/Publication: | 2022-06-19 18:40:02 UTC |
diagonals
Description
Several tools for handling block-matrix diagonals and similar constructs are implemented. Block-diagonal matrices can be extracted or removed using two small functions implemented here. In addition, non-square matrices are supported. Block diagonal matrices occur when two dimensions of a data set are combined along one edge of a matrix. For example, trade-flow data in the decompr' and 'gvc' packages have each country-industry combination occur along both edges of the matrix.
Author(s)
Bastiaan Quast bquast@gmail.com
See Also
https://qua.st/diagonals
Fat Matrix Diagonals
Description
Fat Matrix Diagonals
fatdiag set
Usage
fatdiag(x = 1, steps = NULL, size = NULL, nrow = NULL, ncol = NULL)
fatdiag(x, steps = NULL, size = NULL, on_diagonal = TRUE) <- value
Arguments
x |
a matrix where the dimensions are integer multiples of size or integer dividors of steps |
steps |
the required number of steps (block matrices) across the diagonal |
size |
the width or height of the matrix being dropped over the diagonal of matrix x |
nrow |
the number of rows |
ncol |
the number of columns |
on_diagonal |
should the operation be applied to the elements on the fat diagonal. |
value |
replacement value |
Details
Either steps or size is expected to be provided.
Functions
-
fatdiag<-: the set version of fatdiag
Examples
fatdiag(12, steps=3)
( m <- matrix(111, nrow=6, ncol=9) )
fatdiag(m, steps=3) <- 5
fatdiag(m, steps=3)
fatdiag(12, size=4)
fatdiag(12, size=c(3,4) )
Split Vector
Description
Split Vector
Usage
split_vector(x, steps = NULL, size = NULL, replacement = 0)
Arguments
x |
a numeric or character vector |
steps |
the number of steps |
size |
the size of the step |
replacement |
value to be inserted on the diagonal, by default this is zero (0). |
Details
Either steps or size is expected to be provided.