NYPA/Maragal_7

Rank deficient least squares problem, D. Maragal, NY Power Authority
Name Maragal_7
Group NYPA
Matrix ID 1890
Num Rows 46,845
Num Cols 26,564
Nonzeros 1,200,537
Pattern Entries 1,200,537
Kind Least Squares Problem
Symmetric No
Date 2008
Author D. Maragal
Editor T. Davis
Structural Rank 25,866
Structural Rank Full false
Num Dmperm Blocks 1,294
Strongly Connect Components 41
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 1.332835e+01
Minimum Singular Value 0
Condition Number Inf
Rank 20,843
sprank(A)-rank(A) 5,023
Null Space Dimension 5,721
Full Numerical Rank? no
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Notes
rank deficient (rank(A) < sprank(A) < size(A,2))
sprank: 25866 columns: 26564