dsem: Dynamic Structural Equation Models

Applies dynamic structural equation models to time-series data with generic and simplified specification for simultaneous and lagged effects. Methods are described in Thorson et al. (2024) "Dynamic structural equation models synthesize ecosystem dynamics constrained by ecological mechanisms."

Version:	2.0.0
Depends:	R (≥ 4.0.0)
Imports:	TMB (≥ 1.9.18), Matrix, sem, igraph, utils, RTMB (≥ 1.7.0), ggraph, ggplot2, grid, methods, stats
LinkingTo:	TMB (≥ 1.9.18), RcppEigen
Suggests:	knitr, AER, phylopath, rmarkdown, reshape, gridExtra, dynlm, MARSS, ggpubr, vars, testthat, DHARMa
Enhances:	rstan, tmbstan
Published:	2026-05-12
DOI:	10.32614/CRAN.package.dsem
Author:	James Thorson [aut, cre], Maurice Goodman [ctb], Wouter van der Bijl [ctb] (template for d-separation test), Giovanni M. Marchetti [ctr] (creator of ggm, from which functions are copied to avoid dependency on package graph not on CRAN)
Maintainer:	James Thorson <James.Thorson at noaa.gov>
BugReports:	https://github.com/James-Thorson-NOAA/dsem/issues
License:	GPL-3
URL:	https://james-thorson-noaa.github.io/dsem/
NeedsCompilation:	yes
Citation:	dsem citation info
Materials:	README, NEWS
CRAN checks:	dsem results [issues need fixing before 2026-05-26]

Documentation:

Reference manual:	dsem.html , dsem.pdf
Vignettes:	Demonstration of selected features (source, R code) dsem model description (source, R code) Nonlinear dynamics (source, R code) Random slopes (source, R code) Spatial diffusion (source, R code)

Downloads:

Package source:	dsem_2.0.0.tar.gz
Windows binaries:	r-devel: dsem_1.7.0.zip, r-release: dsem_2.0.0.zip, r-oldrel: dsem_1.7.0.zip
macOS binaries:	r-release (arm64): dsem_2.0.0.tgz, r-oldrel (arm64): dsem_2.0.0.tgz, r-release (x86_64): dsem_1.7.0.tgz, r-oldrel (x86_64): dsem_2.0.0.tgz
Old sources:	dsem archive

Reverse dependencies:

Reverse imports:

tinyVAST

Linking:

Please use the canonical form https://CRAN.R-project.org/package=dsem to link to this page.