Peak-to-peak (maximum - minimum) value along the given axis. Refer to `numpy.ptp` for full documentation. See Also -------- numpy.ptp Notes ----- Same as `ndarray.ptp`, except, where that would return an `ndarray` object, th
(self, axis=None, out=None)
| 758 | return N.ndarray.argmin(self, axis, out)._align(axis) |
| 759 | |
| 760 | def ptp(self, axis=None, out=None): |
| 761 | """ |
| 762 | Peak-to-peak (maximum - minimum) value along the given axis. |
| 763 | |
| 764 | Refer to `numpy.ptp` for full documentation. |
| 765 | |
| 766 | See Also |
| 767 | -------- |
| 768 | numpy.ptp |
| 769 | |
| 770 | Notes |
| 771 | ----- |
| 772 | Same as `ndarray.ptp`, except, where that would return an `ndarray` object, |
| 773 | this returns a `matrix` object. |
| 774 | |
| 775 | Examples |
| 776 | -------- |
| 777 | >>> x = np.matrix(np.arange(12).reshape((3,4))); x |
| 778 | matrix([[ 0, 1, 2, 3], |
| 779 | [ 4, 5, 6, 7], |
| 780 | [ 8, 9, 10, 11]]) |
| 781 | >>> x.ptp() |
| 782 | 11 |
| 783 | >>> x.ptp(0) |
| 784 | matrix([[8, 8, 8, 8]]) |
| 785 | >>> x.ptp(1) |
| 786 | matrix([[3], |
| 787 | [3], |
| 788 | [3]]) |
| 789 | |
| 790 | """ |
| 791 | return N.ndarray.ptp(self, axis, out)._align(axis) |
| 792 | |
| 793 | @property |
| 794 | def I(self): |