R: Convert a set of links keyed on source to a single list of...

links.as.edgelist {lda} | R Documentation

## Convert a set of links keyed on source to a single list of edges.

### Description

This function takes as input a collection of links (as used/described by the model fitting functions in this package) and reproduces the links as a matrix.

### Usage

    links.as.edgelist(links)

### Arguments

`links` | A list of links; the format of this is described in `rtm.collapsed.gibbs.sampler`.

### Value

A two-column matrix where each row represents an edge. Note that the indices in this matrix are 1-indexed rather than 0-indexed.

### Author(s)

Jonathan Chang (slycoder@gmail.com)

### See Also

`rtm.collapsed.gibbs.sampler` for the input format. `predictive.link.probability` is a usage example of the output of this function.

### Examples

    ## Take the citations for the first few documents of Cora.
    data(cora.cites)

    links <- cora.cites[1:5]
    links
    ## [[1]]
    ## [1] 484 389

    ## [[2]]
    ## integer(0)

    ## [[3]]
    ## integer(0)

    ## [[4]]
    ## [1] 177 416 533

    ## [[5]]
    ## [1] 153

    links.as.edgelist(links)
    ##      [,1] [,2]
    ## [1,]    1  485
    ## [2,]    1  390
    ## [3,]    4  178
    ## [4,]    4  417
    ## [5,]    4  534
    ## [6,]    5  154

[Package lda version 1.4.2 Index]