[R] independent set function from graph package

[Diogo Alagador]

Dear all,

I have been using the graph package until last week, especially the functions
independence.number and largest.independent.vertex.sets. This weekend  
I formatted my hard disk and when trying to install packages I  
noticied that graph package is no longer on R repository although can  
be accessed from the BioConductor website. However, neither graph or  
RBGL packages have the above mentioned functions.
Moreover the graph packages in archive are source files and I am  
experimenting some troubles installing it.
Anyone knows where I can access functions to find the largest  
independent set in graphs?

Greetings,

Diogo