Package: sdbuildR 1.0.8.9000

sdbuildR: Easily Build, Simulate, and Visualise Stock-and-Flow Models

Stock-and-flow models are a computational method from the field of system dynamics. They represent how systems change over time and are mathematically equivalent to ordinary differential equations. 'sdbuildR' (system dynamics builder) provides an intuitive interface for constructing stock-and-flow models without requiring extensive domain knowledge. Models can quickly be simulated and revised, supporting iterative development. 'sdbuildR' simulates models in 'R' and 'Julia', where 'Julia' offers unit support and large-scale ensemble simulations. Additionally, 'sdbuildR' can import models created in 'Insight Maker' (<https://insightmaker.com/>).

Authors:Kyra Caitlin Evers [aut, cre, cph]

sdbuildR_1.0.8.9000.tar.gz
sdbuildR_1.0.8.9000.zip(r-4.7)sdbuildR_1.0.8.9000.zip(r-4.6)sdbuildR_1.0.8.9000.zip(r-4.5)
sdbuildR_1.0.8.9000.tgz(r-4.6-any)sdbuildR_1.0.8.9000.tgz(r-4.5-any)
sdbuildR_1.0.8.9000.tar.gz(r-4.7-any)sdbuildR_1.0.8.9000.tar.gz(r-4.6-any)
sdbuildR_1.0.8.9000.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
sdbuildR/json (API)
NEWS

# Install 'sdbuildR' in R:

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

Bug tracker:https://github.com/kcevers/sdbuildr/issues

Pkgdown/docs site:https://kcevers.github.io

On CRAN:

4.53 score 4 stars 9 scripts 519 downloads 47 exports 85 dependencies

Last updated from:63e4db0fd6. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	230
source / vignettes	OK	218
linux-release-x86_64	OK	217
macos-release-arm64	OK	256
macos-oldrel-arm64	OK	283
windows-devel	OK	256
windows-release	OK	242
windows-oldrel	OK	205
wasm-release	OK	137

Exports:%REM%build clean_name contains_IM convert_u debugger drop_u ensemble expit export_plot find_dependencies get_build_code get_regex_time_units get_regex_units get_units has_internet header indexof insightmaker_to_sfm install_julia_env julia_status length_IM logistic logit macro mod model_units nonnegative pulse ramp rbool rdist rem round_IM saveat_func seasonal sigmoid sim_specs simulate solvers step u unit_prefixes url_to_IM use_julia use_threads xmile

Dependencies:askpass base64enc bit bit64 bslib cachem cli clipr cpp11 crayon crosstalk curl data.table deSolve DiagrammeR digest dplyr evaluate farver fastmap fontawesome fs generics ggplot2 glue gtable highr hms htmltools htmlwidgets httr igraph isoband jquerylib jsonlite JuliaConnectoR knitr labeling later lattice lazyeval lifecycle magrittr Matrix memoise mime openssl otel pillar pkgconfig plotly prettyunits progress promises purrr R6 rappdirs RColorBrewer Rcpp readr rlang rmarkdown rstudioapi rvest S7 sass scales selectr stringi stringr sys tibble tidyr tidyselect tinytex tzdb utf8 vctrs viridisLite visNetwork vroom withr xfun xml2 yaml

Help page	Topics
Create data frame of simulation results	as.data.frame.sdbuildR_sim
Convert stock-and-flow model to data frame	as.data.frame.sdbuildR_xmile
Create, modify or remove variables	build
Clean variable name(s)	clean_name
Check if needle is in haystack	contains_IM
Convert unit in equation	convert_u
Debug stock-and-flow model	debugger
Drop unit in equation	drop_u
Run ensemble simulations	ensemble
Expit function	expit
Save plot to a file	export_plot
Find dependencies	find_dependencies
Generate code to build stock-and-flow model	get_build_code
Get regular expressions for time units in Julia	get_regex_time_units
Get regular expressions for units in Julia	get_regex_units
View all standard units	get_units
Check if user has internet	has_internet
Modify header of stock-and-flow model	header
Find index of needle in haystack	indexof
Import Insight Maker model	insightmaker_to_sfm
Install, update, or remove Julia environment	install_julia_env
Check status of Julia installation and environment	julia_status
Length of vector or string	length_IM
Logistic function	logistic sigmoid
Logit function	logit
Create, modify or remove a global variable or function	macro
Create, modify or remove custom units	model_units
Safely check whether x is less than zero	nonnegative
Plot timeseries of ensemble	plot.sdbuildR_ensemble
Plot timeseries of simulation	plot.sdbuildR_sim
Plot stock-and-flow diagram	plot.sdbuildR_xmile
Print method for summary.sdbuildR_xmile	print.summary.sdbuildR_xmile
Create pulse function	pulse
Create ramp function	ramp
Generate random logical value	rbool
Generate random number from custom distribution	rdist
Remainder and modulus	%REM% mod rem
Round Half-Up (as in Insight Maker)	round_IM
Internal function to save data frame at specific times	saveat_func
Create a seasonal wave function	seasonal
Modify simulation specifications	sim_specs
Simulate stock-and-flow model	simulate
Check or translate between deSolve and Julia DifferentialEquations solvers	solvers
Create step function	step
Print overview of stock-and-flow model	summary.sdbuildR_xmile
Specify unit in equations	u
Show unit prefixes	unit_prefixes
Extract Insight Maker model from URL	url_to_IM
Start Julia and activate environment	use_julia
Set up threaded ensemble simulations	use_threads
Create a new stock-and-flow model	xmile

Package: sdbuildR 1.0.8.9000

sdbuildR: Easily Build, Simulate, and Visualise Stock-and-Flow Models

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