Match and mark the positions of elements of a vector along a given axis of a numpy array -


i want mark maxima along given axis of array (which shape may n-dimensional), works fine along first one, rest can't figure out. don't want iterate on axis, because there can arbritarily many of them.

>>> = range(5)*3 >>> = array(a).reshape([3,5], order='f') >>> array([[0, 3, 1, 4, 2],        [1, 4, 2, 0, 3],        [2, 0, 3, 1, 4]]) >>> b = amax(a, axis= 0) >>> c = amax(a, axis= 1) >>> b == array([[false, false, false,  true, false],        [false,  true, false, false, false],        [ true, false,  true, false,  true]], dtype=bool)

this want for:

>>> c == false

but (of course) not.

how working?

i came with:

def tiletuple(t,axis):   m = [1]*t.ndim   m[axis] = t.shape[axis]   return m  ax = 1 tile(expand_dims(amax(a, axis=ax), axis=ax), tiletuple(a, ax)) ==

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