Estimates sparse matrices A or G using fast lasso regression from mRNA transcript levels Y and CNA profiles U. Two models are provided, EPoC A where
AY + U + R = 0
and EPoC G where
Y = GU + E,
the matrices R and E are so far treated as noise. For
details see the manual page of 'lassoshooting' and the
article Rebecka Jrnsten, Tobias Abenius, Teresia Kling,
Linna Schmidt, Erik Johansson, Torbjrn E M Nordling,
Bodil Nordlander, Chris Sander, Peter Gennemark,
Keiko Funa, Bjrn Nilsson, Linda Lindahl, Sven Nelander
(2011) .