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

In lda: Collapsed Gibbs Sampling Methods for Topic Models

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 ([e-mail])

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

Example output

[[1]]
[1] 484 389

[[2]]
integer(0)

[[3]]
integer(0)

[[4]]
[1] 177 416 533

[[5]]
[1] 153

     [,1] [,2]
[1,]    0  484
[2,]    0  389
[3,]    3  177
[4,]    3  416
[5,]    3  533
[6,]    4  153

lda documentation built on May 1, 2019, 10:34 p.m.