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NetworkInference: Quick Start Guide

Fridolin Linder

2019-02-27


Introduction


This package provides an R implementation of the netinf algorithm created by @gomez2010inferring (see here for more information and the original C++ implementation). Given a set of events that spread between a set of nodes the algorithm infers the most likely stable diffusion network that is underlying the diffusion process.


Installation


The package can be installed from CRAN:

install.packages("NetworkInference")

The latest development version can be installed from github:

#install.packages(devtools)
devtools::install_github('desmarais-lab/NetworkInference')

Quick start guide


To get started, get your data into the cascades format required by the netinf function:

library(NetworkInference)

# Simulate random cascade data
df <- simulate_rnd_cascades(50, n_node = 20)

# Cast data into `cascades` object
## From long format
cascades <- as_cascade_long(df)

## From wide format
df_matrix <- as.matrix(cascades) ### Create example matrix
cascades <- as_cascade_wide(df_matrix)

Then fit the model:

result <- netinf(cascades, quiet = TRUE, p_value_cutoff = 0.05)
head(result)
origin_node destination_node improvement p_value
12 3 310.1 2.693e-06
8 12 264.4 1.99e-05
15 13 246.4 4.715e-05
3 6 231.4 0.0001109
19 8 230.3 0.0001127
17 11 224.9 0.0001122

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.