[R] Network Construction in R

[Robert Gentleman]

there are several packages that can be used:
the graph, RBGL and Rgraphviz packages, provide data structures, 
algorithms, and layout/plotting tools for graphs/networks.  There are 
quite a few more specialized packages at Bioconductor (typically more 
related to biological problems). There, you can use biocViews to see 
what is available.

best wishes
   Robert

Johannes Urpelainen wrote:
> Hi,
> 
> I am trying to construct a social network from a data frame with rows
> 
>         acra numa acrb numb year    expab eabo    impab iabo
> 10       USA    2  CAN   20 1957 4017.000  0.0 3187.000  0.0
> 91       USA    2  CUB   40 1957  628.000  0.0  526.000  0.0
> 144      USA    2  HAI   41 1957   25.000  0.0   20.000  0.0
> 
> and so on.
> 
> I want the network to have directed edges from node acra to node acrb 
> weighted by expab. What is the most convenient way to construct this 
> network object?
> 
> Thank you very much!
> 
> Best,
> 

-- 
Robert Gentleman, PhD
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M2-B876
PO Box 19024
Seattle, Washington 98109-1024
206-667-7700
rgentlem at fhcrc.org