redhotmonk a écrit : > When you look at resulting hash, which you get by calling > "(initialize-domain 4 4 0.3)", > you see that the 4-component value vector of every key is "not so" > random. In fact it is the same vector every time. > But when I modify the "initialize-domain" function by deleting the > "seq-of-states" binding, and making a direct call to > the "get-init-states" function, the result is correct, i.e. for every > key in the resulting hash, the associated vector is random. > When you have the "seq-of-states" binding, you call get-init-states only once. The result is stored in the local named "seq-of-states" and, in the loop, (vec (take 4 seq-of-states)) yields the same value at each iteration (since seq-of-states doesn't change). When you inline the call to get-init-states, get-initi-states is called at each iteration, returning a different result each time.
It's akin to (let [r (rand)] [r r]) vs [(rand) (rand)]. Hope this helps. Christophe -- Professional: http://cgrand.net/ (fr) On Clojure: http://clj-me.blogspot.com/ (en) --~--~---------~--~----~------------~-------~--~----~ 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 clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
