Matrix: Pajek/divorce
Description: Pajek network: divorce laws in the 50 US states
![]() |
| (bipartite graph drawing) |
![]() |
| Matrix properties | |
| number of rows | 50 |
| number of columns | 9 |
| nonzeros | 225 |
| structural full rank? | yes |
| structural rank | 9 |
| # of blocks from dmperm | 1 |
| # strongly connected comp. | 1 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | 0% |
| numeric value symmetry | 0% |
| type | binary |
| structure | rectangular |
| Cholesky candidate? | no |
| positive definite? | no |
| author | |
| editor | V. Batagelj |
| date | 2006 |
| kind | bipartite graph |
| 2D/3D problem? | no |
| Additional fields | size and type |
| colname | full 9-by-8 |
| rowname | full 50-by-14 |
Notes:
------------------------------------------------------------------------------ Pajek network converted to sparse adjacency matrix for inclusion in UF sparse matrix collection, Tim Davis. For Pajek datasets, See V. Batagelj & A. Mrvar, http://vlado.fmf.uni-lj.si/pub/networks/data/. ------------------------------------------------------------------------------ http://www.stat.lsa.umich.edu/~faraway/stat503/labs/
| SVD-based statistics: | |
| norm(A) | 12.5529 |
| min(svd(A)) | 0.64736 |
| cond(A) | 19.3908 |
| rank(A) | 9 |
| sprank(A)-rank(A) | 0 |
| null space dimension | 0 |
| full numerical rank? | yes |
| singular values (MAT file): | click here |
| SVD method used: | s = svd (full (R)) ; where [~,R,E] = spqr (A) with droptol of zero |
| status: | ok |

For a description of the statistics displayed above, click here.
Maintained by Tim Davis, last updated 12-Mar-2014.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.