:: [[a]] -> [[a]] package:rio

The transpose function transposes the rows and columns of its argument. For example,

>>> transpose [[1,2,3],[4,5,6]]
[[1,4],[2,5],[3,6]]

If some of the rows are shorter than the following rows, their elements are skipped:

>>> transpose [[10,11],[20],[],[30,31,32]]
[[10,20,30],[11,31],[32]]

Evaluate each action in the structure from left to right, and collect the results. For a version that ignores the results see sequenceA_.

Evaluate each monadic action in the structure from left to right, and collect the results. For a version that ignores the results see sequence_.