LPnetlib/lp_ship12s

Netlib LP problem ship12s: minimize c'*x, where Ax=b, lo<=x<=hi
Name lp_ship12s
Group LPnetlib
Matrix ID 689
Num Rows 1,151
Num Cols 2,869
Nonzeros 8,284
Pattern Entries 8,284
Kind Linear Programming Problem
Symmetric No
Date
Author R. Fourer
Editor R. Fourer
Structural Rank 1,042
Structural Rank Full false
Num Dmperm Blocks 578
Strongly Connect Components 110
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 9.562859e+00
Minimum Singular Value 0
Condition Number Inf
Rank 1,042
sprank(A)-rank(A) 0
Null Space Dimension 109
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes
A Netlib LP problem, in lp/data.  For more information                    
send email to netlib@ornl.gov with the message:                           
                                                                          
	 send index from lp                                                      
	 send readme from lp/data                                                
                                                                          
The following are relevant excerpts from lp/data/readme (by David M. Gay):
                                                                          
The column and nonzero counts in the PROBLEM SUMMARY TABLE below exclude  
slack and surplus columns and the right-hand side vector, but include     
the cost row.  We have omitted other free rows and all but the first      
right-hand side vector, as noted below.  The byte count is for the        
MPS compressed file; it includes a newline character at the end of each   
line.  These files start with a blank initial line intended to prevent    
mail programs from discarding any of the data.  The BR column indicates   
whether a problem has bounds or ranges:  B stands for "has bounds", R     
for "has ranges".                                                         
                                                                          
The optimal value is from MINOS version 5.3 (of Sept. 1988)               
running on a VAX with default options.                                    
                                                                          
                       PROBLEM SUMMARY TABLE                              
                                                                          
Name       Rows   Cols   Nonzeros    Bytes  BR      Optimal Value         
SHIP12S    1152   2763    10941      82527        1.4892361344E+06        
                                                                          
Supplied by Bob Fourer.                                                   
When included in Netlib: Extra free rows omitted.                         
Source: consulting.