[Haskell-beginners] reorganizing lists

[Brent Yorgey]

On Mon, Jan 28, 2013 at 10:37:53AM -0800, Bryce Verdier wrote:
> 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.

This can be done using the 'transpose' function from Data.List.

-Brent