numpy.core.defchararray.count — NumPy v1.11 Manual (original) (raw)
numpy.core.defchararray.count(a, sub, start=0, end=None)[source]¶
Returns an array with the number of non-overlapping occurrences of substring sub in the range [start, _end_].
Calls str.count element-wise.
| Parameters: | a : array_like of str or unicode sub : str or unicode The substring to search for. start, end : int, optional Optional arguments start and end are interpreted as slice notation to specify the range in which to count. |
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| Returns: | out : ndarray Output array of ints. |
Examples
c = np.array(['aAaAaA', ' aA ', 'abBABba']) c array(['aAaAaA', ' aA ', 'abBABba'], dtype='|S7') np.char.count(c, 'A') array([3, 1, 1]) np.char.count(c, 'aA') array([3, 1, 0]) np.char.count(c, 'A', start=1, end=4) array([2, 1, 1]) np.char.count(c, 'A', start=1, end=3) array([1, 0, 0])