rsDCM: Robust and Sparse Dynamic Causal Modelling for Functional MRI

Fits robust and sparse group-level Dynamic Causal Models (DCMs) for functional magnetic resonance imaging data. The group method combines a Student-t likelihood with a Gaussian-spike and nonlocal product-moment slab prior, propagates first-level posterior covariance through block pre-whitening, fits empirical-Bayes modes by multistart generalized expectation-maximization with conditional maximization, and integrates posterior inclusion probabilities by parallel-tempering Monte Carlo (<doi:10.48550/arXiv.2609.06379>). The package also provides an R port of deterministic single-state DCM and Parametric Empirical Bayes routines from 'SPM25' (version 25.01.02), based on Friston et al. (2003) <doi:10.1016/S1053-8119(03)00202-7>.

Version: 0.2.0
Depends: R (≥ 4.0.0)
Imports: Matrix, Rcpp, expm, MASS, methods, stats, utils
LinkingTo: Rcpp
Suggests: testthat (≥ 3.0.0), knitr, rmarkdown, R.matlab, withr
Published: 2026-11-14
DOI: 10.32614/CRAN.package.rsDCM
Author: Godfred Arhin [aut, cre, trl], Nilotpal Sanyal [aut], SPM25 Authors [ctb, cph] (Original MATLAB SPM25 (v25.01.02) implementation; see LICENSE.note)
Maintainer: Godfred Arhin <arhin0122 at gmail.com>
BugReports: https://github.com/Kay202/rsDCM/issues
License: GPL-2
URL: https://kay202.github.io/rsDCM/
NeedsCompilation: yes
Citation: rsDCM citation info
Materials: README, NEWS
CRAN checks: rsDCM results

Documentation:

Reference manual: rsDCM.html , rsDCM.pdf
Vignettes: Introduction to rsDCM (source, R code)

Downloads:

Package source: rsDCM_0.2.0.tar.gz
Windows binaries: r-devel: rsDCM_0.1.0.zip, r-release: rsDCM_0.1.0.zip, r-oldrel: rsDCM_0.1.0.zip
macOS binaries: r-release (arm64): rsDCM_0.1.0.tgz, r-oldrel (arm64): rsDCM_0.1.0.tgz, r-release (x86_64): rsDCM_0.1.0.tgz, r-oldrel (x86_64): rsDCM_0.1.0.tgz
Old sources: rsDCM archive

Linking:

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