>> On Wed, Dec 2, 2009 at 6:22 PM, Don <josereyno...@gmail.com> wrote:
>> > Thank you Stefan and Kevin. Awesome solutions that answer my
>> > question. However I actually made a mistake in posing my question.
>> > Let me attempt to ask my question again.
>>
>> > I have 5 vectors as such:
>> > a [2 4 6 7]
>> > b [1 3 9 2]
>> > c [2 4 5 6]
>> > d [6 1 3 8]
>> > e [4 8 2 1]
>>
>> > and the output i want is this
>>
>> > a1 [0 0 0 0]
>> > b1 [1 0 0 0]
>> > c1 [0 0 0 0]
>> > d1 [0 1 0 0]
>> > e1 [0 0 1 1]
(defn min-cols [v]
(map #(apply min-key % (range (count v)))
(apply map vector v)))
(defn mark-cols [v m]
(map (fn [i] (map #(if % 1 0) (map = m (repeat (count m) i))))
(range (count v))))
(def v [[2 4 6 7] [1 3 9 2] [2 4 5 6] [6 1 3 8] [4 8 2 1]])
user=> (mark-cols v (min-cols v))
((0 0 0 0) (1 0 0 0) (0 0 0 0) (0 1 0 0) (0 0 1 1))
--Chouser
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