[igraph] Problem with Igraph using it for Subgroup Analysis in SNA

[Naomi Straub]

Hello,

I am writing a thesis about subgroups in SNA. Now I want to analyse the cliques with cliques () (and so on) in igraph.
I import my excel matrizes and worked with them in statnet. I worked in SNA with correlation, I plotted them in 2D and 3D. Worked with Betweeness, Centralization, Indegree an Outdegree and so on.
But if I want to use my networks (I have 8 different) for igraph, it said that this is: not a graph object.

Now I thaught about converting it into a graph object with graph() but then it said: 'edges' must be numeric or character...

I don't know what to do now. Hopefully someone can help me!
Thanksfully looking forward to hear from you.

Best Regards,
Nane