chaoneng

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chaoneng

#Network Analysis-Node-level Calculations
library(igraph)
el=as.matrix(read.csv("~/desktop/interactions.csv"))#read.csv(file.choose()


el[,1]=as.character(el[,1])#Because the vertex IDs in this dataset are numbers, we make sure igraph knows these should be treated as characters. Otherwise, it'll create problems.
el[,2]=as.character(el[,2])
g=graph.edgelist(el)

a=get.adjacency(g,sparse=FALSE)

chaoneng

#Network analysis-interaction
library(igraph)

dat=read.csv(file.choose(),header=TRUE) # choose an edgelist in .csv file format
el=as.matrix(dat) # coerces the data into a two-column matrix format that igraph likes
el[,1]=as.character(el[,1])
el[,2]=as.character(el[,2])
g=graph.edgelist(el,directed=FALSE) # turns the edgelist into a 'graph object'

a=get.adjacency(g,sparse=FALSE)