Description Usage Arguments Value Examples

View source: R/calcTopologicalIndices.r

Calculate topological indices for ecological networks. The mean trophic level
and Omnivory and the Level of omnivory are calculated with the function `NetIndices::TrophInd()`

1 | ```
calc_topological_indices(ig, ncores = 0)
``` |

`ig` |
vector of igraph objects |

`ncores` |
number of cores used to compute in parallel, if 0 sequential processing is used. |

a data.frame with the following fields:

`Size:` |
Number of species |

`Top:` |
Number of top predator species |

`Basal:` |
Number of basal especies |

`Omnivory:` |
Proportion of omnivorous species |

`Links:` |
number of interactions |

`LD:` |
linkage density |

`Connectance:` |
directed Connectance |

`PathLength:` |
average path length |

`Clustering:` |
clustering coeficient |

`Cannib:` |
number of cannibalistic species |

`TLmean:` |
mean trophic level |

`TLmax:` |
maximum trophic level |

`LOmnivory:` |

Level of omnivory, quantiﬁes mean of the variety in trophic levels of the preys of a consumer

`Components:` |
number of weakly connected components |

`Vulnerability:` |
mean of number of consumers per prey |

`VulSD:` |
the standard deviation of normalized Vulnerability |

`Generality:` |
mean number of prey per consumer |

`GenSD:` |
the standard deviation of normalized Generality |

1 2 3 4 5 6 7 | ```
calc_topological_indices(netData)
# Generate a test network
g <- graph_from_literal( 1 -+ 4 -+ 7,2 -+ 5 -+7, 3-+6-+7, 7-+7, 4+-3, simplify = FALSE)
calc_topological_indices(g)
``` |

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.