Hi Peter, For the sequence of positive integers: (iterate inc 1)
Take a look at the lazy-seqs library in Clojure-Contrib for some more interesting lazy sequences. Cheers, Stuart > Hello all, I am just about to write my first Clojure code to teach > myself the language. > > I thought I might try Bulls&Cows aka Mastermind. This is the game > where > one player hides a pattern of colors, the other guesses a pattern, and > the first says something like "1 correct color in the right place, > and 2 > correct colors in the wrong places". I want the computer to guess the > pattern. > > The algorithm I want to use is to generate the set of all possible > answers, select one at random as the guess, and then successively > remove > those inconsistent with the set of responses received so far. This > approach turns out to be close to optimal and the set of consistent > guesses shrinks rapidly. > > I want to do this with sequence and filters. I want to make my own > kind > of lazy sequence that is the set of all possible guesses, and then > filter it for consistency with the responses. > > My problem is getting my mind around the Sequence interface. I don't > really understand how to make my own "type" of sequence. I don't > really > want a List, Vector or Map-- I want an infinite sequence defined by an > algorithm. > > In Java I would expect to define my own class that implements the ISeq > interface. What is the Clojure equivalent? > > For example, how would one make the sequence of all positive integers? > I'm sure it's trivial, but it will un-stick me. > > Also I haven't found the right document/screencast that talks about > this. Can someone give me a pointer. > > Thanks in advance > Peter > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
