[R] how to convert a table to adjacency matrix used in social network analysis?

From: Samuel <samuel.yh.wu_at_gmail.com>
Date: Wed, 27 Feb 2008 16:13:35 +0800


Hi Guys,

Do you any one know how to convert a long format table to an adjacency matrix used in sna? The long table looks like

p1 p2 counts
a b 100
a c 200
a d 100
b c 80
b d 90
b e 100
c d 100
c e 40
d e 60

and I want to convert it to an adjacency matrix which can be used in sna?

Any methods will be appreciated!

btw, besides sna package, is there any better package can be used in social network analysis, specially good at plotting?

Thanks in advance!

Regards,

-- 
Samuel Wu
http://webclipping.com.cn

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