BCSPWR04: Power network patterns
Equivalenced representation of US power network

from set BCSPWR, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: bcspwr04.mtx.gz (2556 bytes)
Compressed Harwell-Boeing format file: bcspwr04.psa.gz (2252 bytes)

Visualizations

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

Structure Plot

Matrix Statistics

Size	Type
274 x 274, 943 entries	pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 1612 274 669 669 0
Column Data	Row Data
Average nonzeros per column : 5.9 Standard deviation : 3.3 index nonzeros longest 11 16 shortest 3 2	Average nonzeros per row : 5.9 Standard deviation : 3.3 index nonzeros longest 11 16 shortest 3 2
Bandwidths	Profile Storage
lower 266 upper 266 average |i-j| 69 std.dev. 70	min max ave. std.dev. lower bandwidth 1 266 78 81 upper bandwidth 1 266 78 81 Symmetric skyline storage requirement:21289
Heaviest diagonals
offset from main 0 -1 1 -2 2 -3 3 -37 -25 -22 nonzeros 274 51 51 14 14 12 12 8 8 8 accumulated percent 17.00 20.16 23.33 24.19 25.06 25.81 26.55 27.05 27.54 28.04 Top 10 out of 417 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: ]