Package: SparseICA 0.1.3

Zihang Wang

SparseICA: Sparse Independent Component Analysis

Provides an implementation of the Sparse ICA method in Wang et al. (2024) <doi:10.1080/01621459.2024.2370593> for estimating sparse independent source components of cortical surface functional MRI data, by addressing a non-smooth, non-convex optimization problem through the relax-and-split framework. This method effectively balances statistical independence and sparsity while maintaining computational efficiency.

Authors:Zihang Wang [aut, cre], Irina Gaynanova [aut], Aleksandr Aravkin [aut], Benjamin Risk [aut]

SparseICA_0.1.3.tar.gz
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SparseICA.pdf |SparseICA.html✨
SparseICA/json (API)

# Install 'SparseICA' in R:

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

Bug tracker:https://github.com/thebrisklab/sparseica/issues

Uses libs:

openblas– Optimized BLAS
c++– GNU Standard C++ Library v3

Datasets:

example_sim123 - Example sim123 Dataset

On CRAN:

openblas cpp

3.88 score 3 stars 10 exports 53 dependencies

Last updated 14 days agofrom:9c9dcdac80. Checks:10 OK. Indexed: yes.

Target	Result	Latest binary
Doc / Vignettes	OK	Jan 30 2025
R-4.5-win-x86_64	OK	Jan 30 2025
R-4.5-mac-x86_64	OK	Jan 30 2025
R-4.5-mac-aarch64	OK	Jan 30 2025
R-4.5-linux-x86_64	OK	Jan 30 2025
R-4.4-win-x86_64	OK	Jan 30 2025
R-4.4-mac-x86_64	OK	Jan 30 2025
R-4.4-mac-aarch64	OK	Jan 30 2025
R-4.3-win-x86_64	OK	Jan 30 2025
R-4.3-mac-x86_64	OK	Jan 30 2025

Exports:BIC_sparseICA create_group_list est.M.ols gen_groupPC group_sparseICA matchICA relax_and_split_ICA signchange sparseICA whitener

Dependencies:abind base64enc bitops bslib cachem ciftiTools cli clue cluster digest dotCall64 evaluate fastmap fields fontawesome fs gifti glue highr htmltools htmlwidgets irlba jquerylib jsonlite knitr lattice lifecycle magrittr maps MASS Matrix memoise mime oro.nifti R.methodsS3 R.oo R.utils R6 rappdirs RColorBrewer Rcpp RcppArmadillo rgl rlang rmarkdown RNifti sass spam tinytex viridisLite xfun xml2 yaml

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
BIC-like Criterion for Tuning Parameter Selection in Sparse ICA	BIC_sparseICA
Create a List of fMRI Files for Group ICA Analysis	create_group_list
Estimate mixing matrix from estimates of components	est.M.ols
Example sim123 Dataset	example_sim123
Generate Group-Level Principal Components (PCs) for fMRI Data	gen_groupPC
Function for generating random starting points	gen.inits
For a given angle theta, returns a d x d Givens rotation matrix	givens.rotation
Perform Group Sparse Independent Component Analysis (Sparse ICA)	group_sparseICA
Match ICA results based on L2 distances and Hungarian	matchICA
Relax-and-split ICA Function for Sparse ICA wrapper	relax_and_split_ICA
Change the sign of S and M matrices to positive skewness.	signchange
Soft-threshold function	soft_thresh_R
Sparse Independent Component Analysis (Sparse ICA) Function	sparseICA
Convert angle vector into orthodox matrix	theta2W
The function for perform whitening.	whitener