BCSPWR09: Power network patterns
Western US power network -- 1723 bus

from set BCSPWR, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: bcspwr09.mtx.gz (14041 bytes)
Compressed Harwell-Boeing format file: bcspwr09.psa.gz (12081 bytes)

Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot

Matrix Statistics

Size	Type
1723 x 1723, 4117 entries	pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 6511 1723 2394 2394 0
Column Data	Row Data
Average nonzeros per column : 3.8 Standard deviation : 1.7 index nonzeros longest 1481 15 shortest 1 2	Average nonzeros per row : 3.8 Standard deviation : 1.7 index nonzeros longest 1481 15 shortest 1 2
Bandwidths	Profile Storage
lower 1664 upper 1664 average |i-j| 3.1e+02 std.dev. 3.7e+02	min max ave. std.dev. lower bandwidth 1 1664 2.8e+02 3.9e+02 upper bandwidth 1 1664 2.8e+02 3.9e+02 Symmetric skyline storage requirement:474238
Heaviest diagonals
offset from main 0 -1 1 -2 2 -3 3 -6 -4 4 nonzeros 1723 220 220 49 49 14 14 9 9 9 accumulated percent 26.46 29.84 33.22 33.97 34.73 34.94 35.16 35.29 35.43 35.57 Top 10 out of 1967 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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Last change in this page: Wed Sep 22 13:33:22 US/Eastern 2004 [Comments: ]