image thumbnail

Sparse block diagonal concatenation

version 1.2 (2.49 KB) by Rody Oldenhuis
Sparse version of BLKDIAG()

281 Downloads

Updated 02 May 2020

From GitHub

View license on GitHub

SPBLKDIAG Block diagonal concatenation of matrix input arguments, with sparse output.

Y = SPBLKDIAG(A,B,...) produces SPARSE(BLKDIAG(A, B, ..)) efficiently, where A, B, ... are matrices of class double (real or complex).

Basically, this is a thin wrapper around MATLAB's own BLKDIAG, since it already supports sparse output. However:

- BLKDIAG does not mention sparse support in its documentation; nor the fact that it is supported, nor how to access the functionality.

- BLKDIAG's name is inconsistent with the function names for any of MATLAB's other sparse functions (SPEYE, SPDIAGS, etc.)

Therefore, until The MathWorks fixes this, this function provides a better documented and more intuitively named alternative to BLKDIAG.

Cite As

Rody Oldenhuis (2021). Sparse block diagonal concatenation (https://github.com/rodyo/FEX-spblkdiag/releases/tag/v1.2), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2010a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.