CODEWITHSUNDEEP
social-networkingigraph
Christa
Christa

Reputation: 673

Error with graph.edgelist

Hello I've been trying to convert my dataframe to a graph object using igraph package.

g = as.matrix(votings[,1:2])
g = graph.edgelist(votings, directed = TRUE)
Error in graph.edgelist(votings) :    graph_from_edgelist expects a matrix with two columns

I've also tried drop = FALSE, as other posts suggested.

g = graph.edgelist(votings[,1:2, drop = FALSE))
Error in graph.edgelist(votings) :    graph_from_edgelist expects a matrix with two columns

Any ideas what could be wrong with my code? The first two columns of votings contain character strings (names).

Upvotes: 0

Views: 2544

Answers (1)

Christa
Christa

Reputation: 673

So I tried graph_from_data_frame and it worked as Gabor Casardi suggested. Thank you! But if you want to use graph.edgelist, this works.

library(igraph)
g = graph_from_edgelist(as.matrix(votings[,1:2, drop = FALSE], directed = TRUE))

Upvotes: 1

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