**Digg friends**

# Digg friends

## About this network

This is the directed friendship graph of Digg, collected in 2009.

## Network info

Code | DF |

Category | ⬤ Social |

Date of origin | 2009 |

Data source | http://www.isi.edu/~lerman/downloads/digg2009.html |

Vertex type | User |

Edge type | Vote |

Format | Directed |

Edge weights | Unweighted |

Metadata | Timestamps Incomplete |

Size | 279,630 vertices (users) |

Volume | 1,731,653 edges (votes) |

Average degree (overall) | 12.385 edges / vertex |

Fill | 2.2146 × 10^{–5} edges / vertex^{2} |

Maximum degree | 12,204 edges |

Reciprocity | 21.2% |

Size of LCC | 261,489 vertices |

Size of LSCC | 34,826 vertices |

Wedge count | 695,297,099 |

Claw count | 797,470,104,176 |

Triangle count | 14,236,438 |

Square count | 4,925,314,153 |

4-tour count | 42,186,797,872 |

Power law exponent (estimated) with d_{min} | 1.7510 (d_{min} = 2) |

Gini coefficient | 85.2% |

Relative edge distribution entropy | 81.5% |

Assortativity | –0.055710 |

Clustering coefficient | 6.14% |

Diameter | 18 edges |

90-percentile effective diameter | 4.96 edges |

Mean shortest path length | 4.31 edges |

Spectral norm | 518.89 |

Algebraic connectivity | 0.0039576 |

Preferential attachment exponent | 0.65411 (ε = 2.4939) |

## Downloads

TSV file: | digg-friends.tar.bz2 (11.75 MiB) |

Extraction code: | digg.tar.bz2 (14.50 KiB) |