I use igraph in R for calculate graph measure, my graph make in a PIN that not
Connected Graph and is Disconnected Graph.closeness method for connected graph
is good and right calculate, and for Disconnected graph in not Good!
library(igraph)
# Create of Graph Matrix for Test Closeness Centrality
g <- read.table(text="A B
1 2
3 4
3 5", header=TRUE)
gadj <- get.adjacency(graph.edgelist(as.matrix(g), directed=FALSE))
igObject <- graph.adjacency(gadj) # convert adjacency matrix to igraph object
gCloseness <- closeness(igObject,weights = NULL) # Assign Closeness to Variable
for print
[1] 0.06250000 0.06250000 0.08333333 0.07692308 0.07692308
This output is Right ? and if right How to Calculate ?
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