Compressive Sampling: Sparse Signal Recovery Utilities


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Documentation for package ‘R1magic’ version 0.3.3

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R1magic-package Compressive Sampling: Sparse signal recovery utilities
CompareL1_L2_TV1 Compare L1, L2 and TV on a sparse signal.
DFTMatrix0 Generate Discrete Fourier Transform Matrix using DFTMatrixPlain.
DFTMatrixPlain Generate Plain Discrete Fourier Transform Matrix without the coefficient
GaussianMatrix Generate Gaussian Random Matrix
Lnorm L-p norm of a given complex vector
mutualCoherence Cumulative mutual coherence
objective1TV 1-D Total Variation Penalized Objective Function
objectiveL1 Objective function for ridge L1 penalty
objectiveL2 Objective function for Tikhinov L2 penalty
oo Frequency expression for DFT
R1magic Compressive Sampling: Sparse signal recovery utilities
scaleBack.lm Transform back multiple regression coefficients to unscaled regression coefficients Original question posed by Mark Seeto on the R mailing list.
solve1TV 1-D Total Variation Penalized Nonlinear Minimization
solveL1 l1 Penalized Nonlinear Minimization
solveL2 l2 Penalized Nonlinear Minimization
sparseSignal Sparse digital signal Generator.
TV1 1-D total variation of a vector.