[igraph] Question

[Saeed Nozhati]

Hi

 

I am Saeed Nozhati, PhD candidate at Colorado State University. I would like to plot the electric power network of a city with igraph and then take advantage the power of igraph package. I have plotted by ggplot2 and ggmap, shown here. The correct location and dependency of components are shown in the picture.

I have the adjacency matrix all 327 components and their geocodes as attached The following is my code:

 

adj= read_excel("Adj.xlsx",sheet="AdjMatrix",col_names = TRUE,skip=0)

C= read_excel("Adj.xlsx",sheet="Geocode",col_names = TRUE,skip=0)

adj=adj[,-1];    C=as.matrix(C);    adj=as.matrix(adj)

net <-graph_from_adjacency_matrix(adj)

plot.igraph(net, edge.curved=.1, layout=C)

 

However, igraph shows a very messy and wrong graph. I really appreciate if you would help me.

Thanks in advance for helping me out.

Saeed Nozhati

 

8.jpeg
Description: JPEG image

Adj.xlsx
Description: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet