| compute_derivative | Penalty Derivative Computation |
| compute_penalty | Penalty Function Computation |
| gen_prec_sbm | Block-Structured Precision Matrix based on SBM |
| grasps | Groupwise Regularized Adaptive Sparse Precision Solution |
| performance | Performance Measures for Precision Matrix Estimation |
| plot.blkmat | Plot Function for Block-Structured Precision Matrices (Visualize a Matrix with Group Boundaries) |
| plot.penderiv | Plot Function for S3 Class "penderiv" |
| sparsify_block_banded | Groupwise Block-Banded Sparsifier |