least trimmed squares linear solver

Dear Listmembers,

I'm new to root, so please let me ask. I need a least trimmed squares linear solver for "standard" Ax=b linear equation systems. Can I do this with root? I looked in the user's guide, tutorials and howtos and now I think it can't be done. (There is a least trimmed method for curve fitting, but not for solvers.) But maybe I missed something, so I ask.

Regards,

-- 
Zoli