[R] Problem with shortestPath in igraph and qgraph

[Zahra Tofighi]

hello,

I have a graph and i use qgraph package to calculate centrality parameters.
Now I want to know the maximum value of shortest path for each vertex with
discarding the Inf value in short pathes. For this I use the
ShortestPathLengths of centrality function in qgraph. but when I want to
get the maximum the result is wrong. here is my code:

cen<-centrality(Q)

tmp3<-cen$ShortestPathLengths
shp<-matrix(1:ncol(tmp3),ncol(tmp3),1)for(i in ncol(tmp3)){
shp[i,]=max(tmp3[i,][tmp3[i,]!=Inf)}

when I display the valu of shp the result is same as initial value (form
one to ncol). I also test with shortest.paths function. the result was
same. what is my wrong?

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