> How do I go from here to creating an incidence list representation and > adjacency matrix? (is it possible to assign to individual items in each tuple? I guess not).
You're right python tuples are immutable (1,2,3), whereas python lists [1,2,3] are mutable. However which you use is really a matter of what fits your development purposes - NOT what fits your mathematical model - mathematically speaking they can both represent a (mathematical) tuple... Worthwhile checking out list comprehension syntax [1] as well - very expressive syntax (and usually, as added value, the fastest option) But in general I can't help but think, if you're actually learning python, rather than trying to get a quick computational answer to your problem, then you'll be better served by making a class to represent your underlying objects (and/or as others have suggested using appropriate libraries like numpy). [1] http://docs.python.org/tut/node7.html#SECTION007140000000000000000 Python Freak wrote: > Okay I finally got the adjancency list representation working: > > v = range(1,11) > al=zip(v[:-1],v[1:])+[(10,)] > > Is that right? It works fine. > > > [ for those of you who missed my earlier email, this is not a homework; > i'm a graduate student attempting to learn python ]. > > > On 1/28/07, *Zeth Green* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > On 29/01/07, Michael Sparks <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Is this homework? > > I was about to respond with a literal answer but I thought that too. > It was the mathematical terminology but especially this bit that made > me suspect: > > > On Sunday 28 January 2007 22:45, Python Freak wrote: > Hint: You may find it useful to note that one incidence list > representation is... > _______________________________________________ > python-uk mailing list > python-uk@python.org <mailto:python-uk@python.org> > http://mail.python.org/mailman/listinfo/python-uk > > > > ------------------------------------------------------------------------ > > _______________________________________________ > python-uk mailing list > python-uk@python.org > http://mail.python.org/mailman/listinfo/python-uk _______________________________________________ python-uk mailing list python-uk@python.org http://mail.python.org/mailman/listinfo/python-uk
