Quickest way to find the nth largest value in a numpy Matrix

Question

There are lots of solutions to do this for a single array, but what about a matrix, such as:

>>> k
array([[ 35,  48,  63],
       [ 60,  77,  96],
          


        

Answer 1

nums = [[ 35,  48,  63],
        [ 60,  77,  96],
        [ 91, 112, 135]]

highs = [max(lst) for lst in nums]
highs[nth]