[igraph] Question about Eigenvector centrality

[Mark Stam]

The results I get with Eigenvector centrality is like 2.532517e-02 , 1.162803e-04 etc.

I don't understand what this "e-xx" at the end of the result means.

Do I do something wrong ? Can somebody please explain ?

My R code:

g <- graph.data.frame(graph, directed = F)

sg <- simplify(g)

ev <- evcent(sg,directed = FALSE, scale = TRUE, weights = NULL, options = igraph.arpack.default)$vector

ev <- as.data.frame(as.table(ev))

names(ev) <- c('Name','Eigenvector centrality')

ev