I want to construct a node-link graph. What is known is the ID of the two nodes on the terminal of each link (link ID is also known). Based on this information,how can I construct a node-link graph. Thanks.

On May 5, 2005, at 8:51 AM, Yilin Liu wrote: > I want to construct a node-link graph. What is known is the ID of the > two nodes on the terminal of each link (link ID is also known). Based > on > this information,how can I construct a node-link graph. Do you think the graph package could do what you want? http://www.bioconductor.org/repository/release1.5/package/html/ graph.html http://www.bioconductor.org/repository/devel/vignette/graph.pdf Sean

I want to construct a node-link graph. What is known is the ID of the two nodes on the terminal of each link (link ID is also known). Based on this information,how can I construct a node-link graph. Thanks.

Yilin Liu wrote: > I want to construct a node-link graph. What is known is the ID of the > two nodes on the terminal of each link (link ID is also known). Based on > this information,how can I construct a node-link graph. > Ciao Yilin, Have a look at the function ftM2graphNEL in the graph package. For example From <- c("A","A","C","C") To <- c("B","C","B","D") L <- cbind(From,To) W <- 1:4 G1 <- ftM2graphNEL(L, W, edgemode="directed") More info is in the man page. Best regards Wolfgang ------------------------------------- Wolfgang Huber European Bioinformatics Institute European Molecular Biology Laboratory Cambridge CB10 1SD England Phone: +44 1223 494642 Fax: +44 1223 494486 Http: www.ebi.ac.uk/huber