crochet is an R package that provides functions to help implement the
extraction / subsetting / indexing function [
and
replacement function [<-
of custom matrix-like types
(based on S3, S4, etc.), modeled as closely to the base
matrix
class as possible (with tests to prove it).
Check out the
Example of a Custom Type that Implements 'extract' and 'replace'
vignette on the
crochet page on CRAN.
Install the stable version from CRAN:
install.packages("crochet")
Alternatively, install the development version from GitHub:
# install.packages("remotes")
::install_github("agrueneberg/crochet") remotes
Further documentation can be found on RDocumentation.