Python Numpy Sort rows [duplicate]

Answer 1

Sorry a little bit more digging found me the answer guy = sasBody[np.argsort(sasBody[:, 0])]

Answer 2

You need to use np.lexsort though in case of strings that may not work. As a work around, you may use np.argsort

>>> a
array([['xyz', 0],
       ['abc', 5],
       ['ijk', 10]], dtype=object)
>>> i = np.argsort(a[:,0])
>>> a[i]
array([['abc', 5],
       ['ijk', 10],
       ['xyz', 0]], dtype=object)