Matrix properties
number of rows	1,964
number of columns	1,034
nonzeros	26,719
structural full rank?	no
structural rank	995
# of blocks from dmperm	23
# strongly connected comp.	8
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	rectangular
Cholesky candidate?	no
positive definite?	no

author	D. Maragal
editor	T. Davis
date	2008
kind	least squares problem
2D/3D problem?	no

Additional fields	size and type
b	full 1964-by-1

Notes:

rank deficient (rank(A) < sprank(A) < size(A,2))
rank: 801 sprank: 995 columns: 1034             

Ordering statistics:	result
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	636,722
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	463,389

SVD-based statistics:
norm(A)	9.48847
min(svd(A))	1.54978e-33
cond(A)	6.12246e+33
rank(A)	801
sprank(A)-rank(A)	194
null space dimension	233
full numerical rank?	no
singular value gap	2.93026e+08

singular values (MAT file):	click here
SVD method used:	s = svd (full (A)) ;
status:	ok

For a description of the statistics displayed above, click here.

Maintained by Tim Davis, last updated 12-Mar-2014.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.