NYPA/Maragal_4

Rank deficient least squares problem, D. Maragal, NY Power Authority
Name Maragal_4
Group NYPA
Matrix ID 1887
Num Rows 1,964
Num Cols 1,034
Nonzeros 26,719
Pattern Entries 26,719
Kind Least Squares Problem
Symmetric No
Date 2008
Author D. Maragal
Editor T. Davis
Structural Rank 995
Structural Rank Full false
Num Dmperm Blocks 23
Strongly Connect Components 8
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 9.488473e+00
Minimum Singular Value 1.549781e-33
Condition Number 6.122459e+33
Rank 801
sprank(A)-rank(A) 194
Null Space Dimension 233
Full Numerical Rank? no
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Notes
rank deficient (rank(A) < sprank(A) < size(A,2))
rank: 801 sprank: 995 columns: 1034