重要且具影響力的節點

R 的 Network Analysis

James Curley

Associate Professor, University of Texas at Austin

節點重要性指標

degree(g, mode = c("out"))

A B C D E F G H I J K L
1 1 1 1 1 3 0 1 1 1 1 1

I 到 H：

I -> F -> E -> H
I -> F -> A -> E -> H

K 到 E：

K -> D -> A -> E

B 到 G：

B -> A -> E -> H -> F -> G

betweenness(g, directed = TRUE)

 A  B  C  D  E  F  G  H  I  J  K  L 
24  0  5 10 23 16  0 17  0  0  0  0

betweenness(g, directed = TRUE, 
             normalized = TRUE)

   A    B    C    D    E    F   
0.22 0.00 0.05 0.09 0.21 0.15 
   G    H    I    J    K    L
0.00 0.15 0.00 0.00 0.00 0.00

R 的 Network Analysis