[Haskell-beginners] reorganizing lists

[Bryce Verdier]

Hi All,

At the moment I have a list of lists. The inner list is a coordinate, 
like (x,y) but is [x,y] instead. What I would like to do is group all 
the x's into one list, and the y's into another. I know I can do this 
with calling 2 maps on the container, but I would also like to do this 
in one iteration.

Does anyone have any ideas?

Thanks in advance,
Bryce