Package: jlview 0.1.0

Aviezer Lifshitz

jlview: Zero-Copy Julia to R Array Bridge via ALTREP

Provides zero-copy R views of Julia-owned arrays by implementing ALTREP (Alternative Representations) classes that return pointers directly into Julia's memory. The package integrates with 'JuliaCall' and uses C-level finalizers for safe cross-runtime garbage collection.

Authors:Aviezer Lifshitz [aut, cre], Weizmann Institute of Science [cph]

jlview_0.1.0.tar.gz
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manual.pdf |manual.html✨
card.svg |card.png
jlview/json (API)
NEWS

# Install 'jlview' in R:

install.packages('jlview', repos = c('https://tanaylab.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/tanaylab/jlview/issues

On CRAN:

4.70 score 5 stars 8 scripts 115 downloads 21 exports 10 dependencies

Last updated from:e4360fb755. Checks:8 WARNING, 2 OK, 3 ERROR. Indexed: yes.

Target	Result	Time
linux-devel-arm64	WARNING	137
linux-devel-x86_64	WARNING	137
source / vignettes	OK	203
linux-release-arm64	WARNING	123
linux-release-x86_64	WARNING	130
macos-release-arm64	WARNING	133
macos-release-x86_64	WARNING	215
macos-oldrel-arm64	WARNING	100
macos-oldrel-x86_64	WARNING	192
windows-devel	ERROR	297
windows-release	ERROR	322
windows-oldrel	ERROR	298
wasm-release	OK	106

Exports:is_jlview jlview jlview_colMaxs jlview_colMeans jlview_fp jlview_gc_pressure jlview_info jlview_log2p jlview_multiply jlview_named_matrix jlview_named_vector jlview_release jlview_rowMeans jlview_rowMedians jlview_set_gc_threshold jlview_sparse jlview_sweep jlview_t jlview_top2_per_col jlview_top2_per_row with_jlview

Dependencies:evaluate highr JuliaCall knitr lattice Matrix Rcpp rjson xfun yaml

Zero-Copy Julia Arrays in R with jlview

Rendered fromjlview.Rmdusingknitr::rmarkdownon May 23 2026.

Last update: 2026-03-19
Started: 2026-03-18

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Check if an object is a jlview ALTREP vector	is_jlview
Create a zero-copy R view of a Julia array	jlview
Get current GC pressure information	jlview_gc_pressure
Get information about a jlview object	jlview_info
Create a zero-copy R view of a named Julia matrix	jlview_named_matrix
Create a zero-copy R view of a named Julia vector	jlview_named_vector
Explicitly release a jlview object	jlview_release
Set the GC pressure threshold	jlview_set_gc_threshold
Create a zero-copy R sparse matrix view of a Julia SparseMatrixCSC	jlview_sparse
Use a jlview object within a scope, releasing it on exit	with_jlview