Mathematica 9 is now available

Wolfram Library Archive

Courseware Demos MathSource Technical Notes
All Collections Articles Books Conference Proceedings

L1Packv2: A Mathematica package for minimizing an l1-penalized functional

Ignace Loris
Journal / Anthology

Computer Physics Communications
Year: 2008
Volume: 179
Issue: 12
Page range: 895-902

L1Packv2 is a Mathematica package that contains a number of algorithms that can be used for the minimization of an 1-penalized least squares functional. The algorithms can handle a mix of penalized and unpenalized variables. Several instructive examples are given. Also, an implementation that yields an exact output whenever exact data are given is provided.


Inverse problem, Sparsity, 1-norm, Minimization, Compressed sensing