| Type: | Package |
| Title: | Spatial Analysis of Yearly, Longitudinal, and Areal Change |
| Version: | 0.1.3 |
| Author: | Abdisalam Hassan Muse
 [aut, cre] |
| Maintainer: | Abdisalam Hassan Muse <abdisalam.hassan@amoud.edu.so> |
| Description: | Provides the Saylac Shiny application for multidisciplinary analysis of global, national, and regional indicators observed across places and years. SAYLAC abbreviates Spatial Analysis of Yearly, Longitudinal, and Areal Change. The platform supports spatial diagnostics, longitudinal data exploration, time-series diagnostics, comparative forecasting, and automated reporting for development, health, education, economic, environmental, and social indicators. The application implements three connected modules: Spatial Analysis Workflow for exploratory spatial data analysis, Single Model Diagnostics for stationarity testing, trend diagnostics, and comparative forecasting, and Spatial Uncertainty and Reporting Analysis Dashboard for forecast mapping, spatial clustering, and reporting. The application supports choropleth mapping, Moran's I, Geary's C, Local Indicators of Spatial Association, Getis-Ord Gi star statistics, spatial correlograms, Theil-Sen trend estimation, Mann-Kendall testing, Autoregressive Integrated Moving Average models, Exponential Smoothing State Space models, neural network autoregression, BATS, TBATS, theta forecasting, symmetric mean absolute percentage error model comparison, and report generation. The platform was first applied in Touryare and Mohamud (2026) <doi:10.1007/s43621-026-04022-x> for integrated spatial-temporal forecasting of educational attainment in Eastern Africa toward Sustainable Development Goal 4. |
| License: | GPL (≥ 3) |
| Encoding: | UTF-8 |
| LazyData: | true |
| Depends: | R (≥ 4.2.0) |
| Imports: | bs4Dash, classInt, cowplot, DT, forecast, ggplot2, maps, Metrics, nnfor, patchwork, RColorBrewer, readr, rmarkdown, rnaturalearth, sf, shiny, spdep, stringr, tidyverse, trend, tseries, zoo |
| Suggests: | testthat (≥ 3.0.0), knitr |
| URL: | https://muse252.shinyapps.io/Saylac_Shiny_App_Ready/ |
| NeedsCompilation: | no |
| Packaged: | 2026-07-08 01:05:00 UTC; root |
| Repository: | CRAN |
| Date/Publication: | 2026-07-16 13:30:08 UTC |
Saylac: Spatial Analysis of Yearly, Longitudinal, and Areal Change
Description
Provides the Saylac Shiny application for multidisciplinary spatial analysis, longitudinal diagnostics, time-series forecasting, and reporting of global, national, and regional indicators.
Details
SAYLAC abbreviates Spatial Analysis of Yearly, Longitudinal, and Areal Change. The platform can be used with indicators from education, health, poverty, economy, environment, demography, infrastructure, governance, and other fields.
See Also
Load SAW-SIMODI-SURAD project state
Description
Backward-compatible alias for load_saylac_state().
Usage
load_saw_simodi_surad_state(file)Arguments
file |
File path to an RDS project-state file. |
Value
A list containing the saved analytical state.
Examples
tmp <- tempfile(fileext = ".rds")
save_saw_simodi_surad_state(list(region = "Eastern Africa"), tmp)
load_saw_simodi_surad_state(tmp)Load Saylac project state
Description
Loads a previously saved project-state object.
Usage
load_saylac_state(file)Arguments
file |
File path to an RDS project-state file. |
Value
A list containing the saved analytical state.
Examples
tmp <- tempfile(fileext = ".rds")
save_saylac_state(list(region = "Eastern Africa"), tmp)
load_saylac_state(tmp)Launch the SAW-SIMODI-SURAD Shiny application
Description
Backward-compatible alias for run_saylac().
Usage
run_saw_simodi_surad(launch.browser = TRUE, ...)Arguments
launch.browser |
Logical. If TRUE, the app opens in the default browser. |
... |
Additional arguments passed to |
Value
No return value. Called for the side effect of launching a Shiny application.
Examples
if (interactive()) run_saw_simodi_surad()Launch the Saylac Shiny application
Description
Opens the installed Saylac dashboard.
Usage
run_saylac(launch.browser = TRUE, ...)Arguments
launch.browser |
Logical. If TRUE, the app opens in the default browser. |
... |
Additional arguments passed to |
Value
No return value. Called for the side effect of launching a Shiny application.
Examples
if (interactive()) run_saylac()Save SAW-SIMODI-SURAD project state
Description
Backward-compatible alias for save_saylac_state().
Usage
save_saw_simodi_surad_state(state, file)Arguments
state |
A named list describing the analytical state. |
file |
File path where the state object should be saved. |
Value
Invisibly returns the file path used to save the state.
Examples
tmp <- tempfile(fileext = ".rds")
save_saw_simodi_surad_state(list(region = "Eastern Africa"), tmp)Save Saylac project state
Description
Saves a list containing analytical choices such as indicator, region, year, model settings, and reporting options.
Usage
save_saylac_state(state, file)Arguments
state |
A named list describing the analytical state. |
file |
File path where the state object should be saved. |
Value
Invisibly returns the file path used to save the state.
Examples
tmp <- tempfile(fileext = ".rds")
save_saylac_state(list(indicator = "years_of_schooling"), tmp)
load_saylac_state(tmp)Return the installed SAW-SIMODI-SURAD application directory
Description
Backward-compatible alias for saylac_app().
Usage
saw_simodi_surad_app()Value
A character string giving the installed path to the Shiny application directory.
Examples
saw_simodi_surad_app()Locate example data included with SAW-SIMODI-SURAD
Description
Backward-compatible alias for saylac_example_data().
Usage
saw_simodi_surad_example_data()Value
A named character vector containing the path to the example CSV file.
Examples
saw_simodi_surad_example_data()Return the installed Saylac application directory
Description
Returns the installed path to the Saylac Shiny application.
Usage
saylac_app()Value
A character string giving the installed path to the Shiny application directory.
Examples
saylac_app()Locate example data included with Saylac
Description
Returns the path to an example country-year data set for Eastern Africa.
Usage
saylac_example_data()Value
A named character vector containing the path to the example CSV file.
Examples
saylac_example_data()