numpy.char.count
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numpy.char.count(a, sub, start=0, end=None)
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Returns an array with the number of non-overlapping occurrences of substring
sub
in the range [start
,end
].Calls
str.count
element-wise.- Parameters
-
-
aarray_like of str or unicode
-
substr or unicode
-
The substring to search for.
-
start, endint, optional
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Optional arguments
start
andend
are interpreted as slice notation to specify the range in which to count.
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- Returns
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outndarray
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Output array of ints.
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See also
Examples
>>> c = np.array(['aAaAaA', ' aA ', 'abBABba']) >>> c array(['aAaAaA', ' aA ', 'abBABba'], dtype='<U7') >>> 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])
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https://numpy.org/doc/1.19/reference/generated/numpy.char.count.html