PEIP (version 1.7)

l_curve_tikh_gsvd: L-curve tikh gsvd

Description

L-curve tikh gsvd

Usage

l_curve_tikh_gsvd(U, d, X, Lam, Mu, G, L, npoints, varargin = NULL)

Arguments

U

from the gsvd

d

data vector for the problem G*m=d

X

from the gsvd

Lam

from the gsvd

Mu

from the gsvd

G

system matrix

L

roughening matrix

npoints

varargin

alpha_min, alpha_max: if specified, constrain the logrithmically spaced regularization parameter range, otherwise an attempt is made to estimate them from the range of generalized singular values

Value

• eta
  - the solution seminorm ||Lm||
• rho
  - the residual norm ||G m - d||
• reg_param
  - corresponding regularization parameters
• m
  - corresponding suite of models for truncated GSVD

Details

Uses output of GSVD