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