The basic strategy in that case is that you write a perl script that reads as input the file from Spence web page and then write as output in a format that GAP can read.
You can of course use Python or any other language that has good text capabilities. Mathieu On Fri, Mar 22, 2013 at 7:24 PM, Robert Bailey <robert.bai...@ryerson.ca>wrote: > Dear Forum, > > This is perhaps not strictly a GAP question, but anyway.... > > I've been working on some computations in GAP (using the GRAPE and other > packages), testing certain properties of distance-regular and strongly > regular graphs. (I can go into more detail if necessary--but the > SetOrbit package of Pech and Reichard has been especially useful.) > > There is an online catalogue of strongly regular graphs on Ted Spence's > webpage: > http://www.maths.gla.ac.uk/~es/srgraphs.php > > The graphs are given by their adjacency matrices; however, as given > these matrices are not immediately readable by GAP. Does anyone know of > an easy way to convert them into the right format (i.e. adding the > commas and brackets)? For cases where there are a small number of > graphs, I've been able to do search/replace in a text editor to add the > commas, then add the brackets manually---but this isn't really feasible > when there are 32,548 matrices of size 36x36. > > Thanks, > Robert Bailey. > > -- > Dr. Robert Bailey > Department of Mathematics > Ryerson University > 350 Victoria St. > Toronto, Ontario M5B 2K3 > Canada > > Office: EPH 442B > Telephone: +1 416-979-5000 x2874 > Web: www.math.ryerson.ca/~rbailey > > > _______________________________________________ > Forum mailing list > Forum@mail.gap-system.org > http://mail.gap-system.org/mailman/listinfo/forum > _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
