getGroupID              Get a groupID object
grpSLOPE                Group SLOPE (Group Sorted L-One Penalized
                        Estimation)
lambdaChiMCAdjustment   Monte Carlo based Group SLOPE tuning parameter
                        correction
lambdaGroupSLOPE        Regularizing sequence for Group SLOPE
lambdaMC                Monte Carlo based adjustment of the SLOPE
                        tuning parameters
proxGroupSortedL1       Prox for group SLOPE
proxSortedL1            Fast prox for the Sorted L1 norm
proximalGradientSolverGroupSLOPE
                        Proximal gradient method for Group SLOPE
