Package: randomwalk 2.1.2

John Gavin

randomwalk: Asynchronous Pixel Walking Simulation with Parallel Processing

Implements parallel random walk simulations that create fractal graphs through asynchronous pixel walking on a grid. Features include parallel processing with crew workers (chunked mode recommended), comprehensive statistics tracking, and an optional Shiny interface for interactive visualization. Core simulation functions can be used programmatically without the GUI.

Authors:John Gavin [aut, cre]

randomwalk_2.1.2.tar.gz
randomwalk_2.1.2.zip(r-4.7)randomwalk_2.1.2.zip(r-4.6)randomwalk_2.1.2.zip(r-4.5)
randomwalk_2.1.2.tgz(r-4.6-any)randomwalk_2.1.2.tgz(r-4.5-any)
randomwalk_2.1.2.tar.gz(r-4.7-any)randomwalk_2.1.2.tar.gz(r-4.6-any)
randomwalk_2.1.2.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
randomwalk/json (API)

# Install 'randomwalk' in R:

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

Bug tracker:https://github.com/johngavin/randomwalk/issues

On CRAN:

4.08 score 1 stars 44 exports 18 dependencies

Last updated from:c0b359df64. Checks:7 NOTE, 2 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	NOTE	175
source / vignettes	OK	281
linux-release-x86_64	NOTE	167
macos-release-arm64	NOTE	103
macos-oldrel-arm64	NOTE	94
windows-devel	NOTE	108
windows-release	NOTE	108
windows-oldrel	NOTE	114
wasm-release	OK	139

Exports:broadcast_black_pixel broadcast_update check_termination cleanup_async close_sockets count_black_pixels create_controller create_pub_socket create_walker find_isolated_pixels format_statistics generate_walker_positions get_black_percentage get_neighbors get_neighbors_bounded get_pixel has_black_neighbor init_publisher_socket init_subscriber_socket initialize_grid is_within_bounds plot_grid plot_grid_enhanced plot_simulation plot_walker_paths print_simulation_result run_dashboard run_simulation set_pixel_black sim_input_server sim_input_ui sim_output_server sim_output_ui simulate_walker_dynamic step_walker touches_black update_grid_from_broadcasts validate_no_isolated_pixels validate_termination_position worker_check_updates worker_init worker_run_walker worker_step_walker wrap_position

Dependencies:cli cpp11 farver ggplot2 glue gtable isoband labeling lifecycle logger R6 RColorBrewer rlang S7 scales vctrs viridisLite withr

Diffusion-Limited Aggregation Theory

Rendered fromdla_theory.Rmdusingknitr::rmarkdown

Last update: 2026-03-01
Started: 2026-03-01

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Broadcast Black Pixel Update	broadcast_black_pixel
Broadcast Grid Update to Workers	broadcast_update
Check Walker Termination Conditions	check_termination
Clean Up Async Resources	cleanup_async
Close Sockets	close_sockets
Count Black Pixels in Grid	count_black_pixels
Create Async Controller (Auto-detect Backend)	create_controller
Create Nanonext Publisher Socket	create_pub_socket
Create a Walker	create_walker
Find Isolated Pixels in Grid	find_isolated_pixels
Format Simulation Statistics for Display	format_statistics
Generate Random Starting Positions for Walkers	generate_walker_positions
Get Percentage of Black Pixels	get_black_percentage
Get Neighboring Positions	get_neighbors
Get Neighbor Positions (Bounded)	get_neighbors_bounded
Get Pixel Value from Grid	get_pixel
Check if Walker Has Black Neighbor	has_black_neighbor
Initialize Publisher Socket	init_publisher_socket
Initialize Subscriber Socket	init_subscriber_socket
Initialize a Grid	initialize_grid
Check if a Position is Within Grid Bounds	is_within_bounds
Plot Final Grid State	plot.randomwalk_result plot_grid
Enhanced Grid Plot with Arrival Time Coloring	plot_grid_enhanced
Plot Simulation Results	plot_simulation
Plot Walker Paths	plot_walker_paths
Print Simulation Result	print_simulation_result
Run Shiny Dashboard App	run_dashboard
Run a Random Walk Simulation	run_simulation
Set Pixel Value in Grid	set_pixel_black
Simulation Input Module Server	sim_input_server
Simulation Input Module UI	sim_input_ui
Simulation Output Module Server	sim_output_server
Simulation Output Module UI	sim_output_ui
Simulate Walker with Dynamic Grid Broadcasting	simulate_walker_dynamic
Move Walker One Step	step_walker
Check if Walker Touches a Black Pixel	touches_black
Update Local Grid from Broadcasts	update_grid_from_broadcasts
Validate Grid State for Isolated Pixels	validate_no_isolated_pixels
Validate Termination Position	validate_termination_position
Check for Grid Updates (Worker)	worker_check_updates
Initialize Worker with Subscriber Socket	worker_init
Run Walker Until Termination (Worker Task)	worker_run_walker
Execute Walker Step (Worker)	worker_step_walker
Wrap Position Around Grid Boundaries (Torus Topology)	wrap_position