Doxygen Source Code Documentation

QRDecom.m File Reference


Functions
Tolerance for computing rank from	diag (R) after QR decomposition%[nrows
Variables
	function [err, Qd, dfx, dmat2]
Bethesda MD Define the function name for easy referencing	FuncName = 'QRDecom.m'
Debug Flag	DBG = 1
initailize return variables	err = 1
Tolerance for computing rank from	ncols = size(dmat)
Find the null space of the constraints	matrix [Qc, Rc, Ec] = qr(cmat')
	pc = Rrank(Rc)
	Qc0 = Qc(:,pc+1:end)
Do qr decomposition on design matrix projected to null space	Dproj = dmat*Qc0
	dfx = qr(Dproj,0) Rrank(Rd)
	Qd = Qd(:,1:dfx)
	Rd = Rd(1:dfx,1:dfx)
Return reduced design matrix if requested if nargout	dmat2 = Qd' * dmat
	return

Function Documentation

Tolerance for computing rank from diag

(

)

Referenced by matrix_inverse_dsc().

Variable Documentation

Debug Flag DBG = 1

Definition at line 35 of file QRDecom.m.

dfx = qr(Dproj,0) Rrank(Rd)

Definition at line 51 of file QRDecom.m.

Return reduced design matrix if requested if nargout dmat2 = Qd' * dmat

Definition at line 57 of file QRDecom.m.

Do qr decomposition on design matrix projected to null space Dproj = dmat*Qc0

Definition at line 49 of file QRDecom.m.

end err = 1

Definition at line 60 of file QRDecom.m.

Bethesda MD Define the function name for easy referencing FuncName = 'QRDecom.m'

Definition at line 32 of file QRDecom.m.

function[err, Qd, dfx, dmat2]

Initial value:

 QRDecom(dmat, cmat)
%
%   [err,] = QRDecom.m ()
%
%Purpose:
%   
%   
%   
%Input Parameters:
%   
%   
%   
%Output Parameters:
%   err : 0 No Problem
%       : 1  Problems
%   
%   
%      
%Key Terms:
%   
%More Info :
%   
%   
%   
%
%     Author : Gang Chen
%     Date : Tue Mar 23 16:09:23 EST 2004
%     SSCC/NIMH/ National Institutes of Health

Definition at line 1 of file QRDecom.m.

Find the null space of the constraints matrix[Qc, Rc, Ec] = qr(cmat')

Definition at line 44 of file QRDecom.m.

Tolerance for computing rank from ncols = size(dmat)

Definition at line 41 of file QRDecom.m.

pc = Rrank(Rc)

Definition at line 45 of file QRDecom.m.

Referenced by basis_expr(), basis_parser(), draw_image_line(), get_pcor_thresh_coef(), ISQ_saver_CB(), main(), PARSER_evaluate_one(), PARSER_evaluate_vector(), PARSER_generate_code(), PARSER_has_symbol(), PARSER_mark_symbols(), PCOR_get_pcor_and_coef(), PDF_copy(), and RWC_setup_fims().

Qc0 = Qc(:,pc+1:end)

Definition at line 46 of file QRDecom.m.

Qd = Qd(:,1:dfx)

Definition at line 52 of file QRDecom.m.

Rd = Rd(1:dfx,1:dfx)

Definition at line 53 of file QRDecom.m.

return

Definition at line 61 of file QRDecom.m.

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