Re: [igraph] How to read a graph data with non numeric vertex ID

[Tamas Nepusz]

> Thank you so much. I see the problem...my file is a txt file.
The extension doesn't matter, igraph is happy with whatever extension  
you use as long as you specify the format as a keyword argument (see  
my example).
The NCOL format is a plain simple format, every line consists of two  
or three items:

vertexname1 vertexname2

or

vertexname1 vertexname2 weight

Your input file is exactly in that format, that's why I think that the  
NCOL reader should work out of the box.

--
Tamas