Penalized Triograms: Total Variation Regularization for Bivariate Smoothing

This is an archive of software and text for a paper titled Penalized Triograms: Total Variation Regularization for Bivariate Smoothing by Roger Koenker and Ivan Mizera.

A preliminary version of the paper is available here. The archive format for the paper is pdf and can be obtained by clicking here, The slides for an old talk on the paper are also in pdf and and can be obtained by clicking here,
A related conference paper: ``Elastic and Plastic Splines: Some Experimental Comparisons,'' (with I. Mizera) Statistical Data Analysis based on the L1-norm and Related Methods, (Y. Dodge, ed.), Birkhauser, Basel, 2002, 405-414. is available in pdf here, Problems or questions should be directed to roger@ysidro.econ.uiuc.edu