Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-16 Thread Laurent PETIT
You're right, thanks ! 2009/2/17 Chouser > > On Mon, Feb 16, 2009 at 7:54 PM, samppi wrote: > > > > Thanks a lot, everyone. Isn't > > (reduce conj [] (apply map vector [[:a :b] [1 2] ['a 'b]])) > > equivalent to > > (into [] (apply map vector [[:a :b] [1 2] ['a 'b]])) > > though? > > Yes. > >

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-16 Thread Chouser
On Mon, Feb 16, 2009 at 7:54 PM, samppi wrote: > > Thanks a lot, everyone. Isn't > (reduce conj [] (apply map vector [[:a :b] [1 2] ['a 'b]])) > equivalent to > (into [] (apply map vector [[:a :b] [1 2] ['a 'b]])) > though? Yes. --Chouser --~--~-~--~~~---~--~~

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-16 Thread samppi
Thanks a lot, everyone. Isn't (reduce conj [] (apply map vector [[:a :b] [1 2] ['a 'b]])) equivalent to (into [] (apply map vector [[:a :b] [1 2] ['a 'b]])) though? On Feb 16, 3:55 pm, Laurent PETIT wrote: > And to get the enclosing vector: > > (reduce conj [] (apply map vector [[:a :b] [1 2

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-16 Thread Laurent PETIT
And to get the enclosing vector: (reduce conj [] (apply map vector [[:a :b] [1 2] ['a 'b]])) 2009/2/16 David Nolen > > I'm sure it can be done, but it's not clear to me if you have a vector of >> vectors >> how Stuart's solution would work: >> >> 1:15 user=> (map vector vecs) > > ([[:a0 :a1 :a

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread David Nolen
> I'm sure it can be done, but it's not clear to me if you have a vector of > vectors > how Stuart's solution would work: > > 1:15 user=> (map vector vecs) ([[:a0 :a1 :a2]] [[:b0 :b1 :b2]]) (apply (partial map vector) [[1 2 3] ['a 'b 'c] ["cat" "dog" "bird"]]) works on a vector of vectors. The

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread Brian Doyle
>From the original question it looked like there was a vector of unknown length of vectors [[a0 a1 a2] [b0 b1 b2] ...] So my solution is something like: 1:12 user=> (def vecs [[:a0 :a1 :a2] [:b0 :b1 :b2]]) #'user/vecs 1:13 user=> (partition (count vecs) (interleave (flatten vecs))) ((:a0 :a1) (:

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread David Nolen
Of course ;) Keep forgetting the obvious things. On Sun, Feb 15, 2009 at 9:36 PM, Stuart Halloway wrote: > > (map vector [1 2 3] ['a 'b 'c] ["cat" "dog" "bird"]) > -> ([1 a "cat"] [2 b "dog"] [3 c "bird"]) > > > Actually something closer to your exact expression is this: > > > > (apply (partial m

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread Stuart Halloway
(map vector [1 2 3] ['a 'b 'c] ["cat" "dog" "bird"]) -> ([1 a "cat"] [2 b "dog"] [3 c "bird"]) > Actually something closer to your exact expression is this: > > (apply (partial map (fn [& rest] (apply vector rest))) [[1 2 3] ['a > 'b 'c] ["cat" "dog" "bird"]]) > > On Sun, Feb 15, 2009 at 7:42 P

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread samppi
Thanks a lot. I didn't know that map could take multiple collections. On Feb 15, 5:47 pm, David Nolen wrote: > Actually something closer to your exact expression is this: > > (apply (partial map (fn [& rest] (apply vector rest))) [[1 2 3] ['a 'b 'c] > ["cat" "dog" "bird"]]) > > On Sun, Feb 15, 2

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread David Nolen
Actually something closer to your exact expression is this: (apply (partial map (fn [& rest] (apply vector rest))) [[1 2 3] ['a 'b 'c] ["cat" "dog" "bird"]]) On Sun, Feb 15, 2009 at 7:42 PM, David Nolen wrote: > (map (fn [& rest] (apply vector rest)) [1 2 3] ['a 'b 'c] ["cat" "dog" > "bird"]) >

Re: Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread David Nolen
(map (fn [& rest] (apply vector rest)) [1 2 3] ['a 'b 'c] ["cat" "dog" "bird"]) On Sun, Feb 15, 2009 at 7:16 PM, samppi wrote: > > What would I do if I wanted this: > > [[a0 a1 a2] [b0 b1 b2] ...] -> [[a0 b0 ...] [a1 b1 ...] [a2 b2 ...]] > > I could write a loop, I guess, but is there a nice, id

Newbie: Separating and grouping the elements in a bunch of vectors

2009-02-15 Thread samppi
What would I do if I wanted this: [[a0 a1 a2] [b0 b1 b2] ...] -> [[a0 b0 ...] [a1 b1 ...] [a2 b2 ...]] I could write a loop, I guess, but is there a nice, idiomatic, functional way of doing this? I didn't spot a way in clojure.contrib.seq-utils either. --~--~-~--~~~--