Aim of the tutorial | Conceptual background | Matrix population models | Perturbation magnitude, duration, and recurrence | Population reduction | Integrated vulnerability | What the metric is, and what it is not | Installation and packages | Step 1. Define a projection matrix | Step 2. Create a demovuln model | Step 3. Inspect perturbation targets | Step 4. Simulate one perturbation regime | Step 5. Compare demographic targets under the same regime | Step 6. Define a perturbation grid | Step 7. Run the grid and compute integrated vulnerability | Step 8. Compare vulnerability across all supported targets | Step 9. Visualize vulnerability surfaces | Step 10. Use a custom perturbation target | Step 11. Useful options for advanced analyses | Initial state | Returning stage vectors | Recovery window | Infeasible regimes | Step 12. Recommended workflow for empirical analyses | Complete minimal workflow | Interpretation checklist | Session information
Package: demovuln 0.1.0
Àlex Giménez-Romero
demovuln: Demographic Vulnerability Metrics for Matrix Population Models
Simulates temporally structured perturbations in matrix population models and computes population reduction and integrated demographic vulnerability across perturbation regimes. Perturbations can be applied to adult survival, juvenile survival, fecundity, all demographic entries, or user-defined matrix elements. The package provides tools to simulate individual perturbation trajectories, evaluate perturbation grids, and summarize demographic vulnerability in structured populations.
Authors:
demovuln_0.1.0.tar.gz
demovuln_0.1.0.zip(r-4.7-any)demovuln_0.1.0.zip(r-4.6-any)demovuln_0.1.0.zip(r-4.5-any)
demovuln_0.1.0.tgz(r-4.6-any)demovuln_0.1.0.tgz(r-4.5-any)
demovuln_0.1.0.tar.gz(r-4.7-any)demovuln_0.1.0.tar.gz(r-4.6-any)
demovuln_0.1.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
demovuln/json (API)
| # Install 'demovuln' in R: |
| install.packages('demovuln', repos = c('https://agimenezromero.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/agimenezromero/demovuln-r/issues
Last updated from:4ee0527a1e. Checks:9 OK. Indexed: yes.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel | OK | 102 | ||
| source / vignettes | OK | 158 | ||
| linux-release | OK | 100 | ||
| macos-release | OK | 163 | ||
| macos-oldrel | OK | 178 | ||
| windows-devel | OK | 74 | ||
| windows-release | OK | 65 | ||
| windows-oldrel | OK | 55 | ||
| wasm-release | OK | 75 |
Exports:apply_perturbationbuild_target_maskcompute_vulnerabilitydominant_eigenvaluegrid_scenariosmatrix_population_modelperturbation_gridperturbation_grid_from_frequenciespopulation_reductionrun_gridsimulate_dynamicsstable_stage_distribution
Dependencies:
A complete user-friendly tutorial for demovuln
Last update: 2026-05-21
Started: 2026-05-21
Quickstart
Last update: 2026-05-19
Started: 2026-05-19
Vulnerability surfaces
Last update: 2026-05-19
Started: 2026-05-19
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Apply a proportional perturbation to a projection matrix | apply_perturbation |
| Build a perturbation target mask | build_target_mask |
| Compute integrated demographic vulnerability | compute_vulnerability |
| Dominant eigenvalue of a projection matrix | dominant_eigenvalue |
| Enumerate perturbation-grid scenarios | grid_scenarios |
| Matrix population model | matrix_population_model |
| Perturbation grid | perturbation_grid |
| Build a perturbation grid from frequencies | perturbation_grid_from_frequencies |
| Compute percent population reduction | population_reduction |
| Simulate a perturbation grid | run_grid |
| Simulate dynamics under a temporally structured perturbation | simulate_dynamics |
| Stable stage distribution | stable_stage_distribution |