Thanks for the reply. I suspected that this might be the answer--the problem is I have no knowledge of perl or Python or such languages.
What I was hoping was that someone might have a suitable piece of code lying around already..... Thanks again, Robert. ----- Original Message ----- From: Mathieu Dutour <mathieu.dut...@gmail.com> Date: Friday, March 22, 2013 2:53 pm Subject: Re: [GAP Forum] Reading strongly regular graphs into GAP To: Robert Bailey <robert.bai...@ryerson.ca> Cc: GAP forum <fo...@gap-system.org> > 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
