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# numpy string operations | count() function

• Last Updated : 23 Jan, 2019

`numpy.core.defchararray.count(arr, sub, start=0, end=None)` is another function for doing string operations in numpy.It returns an array with the number of non-overlapping occurrences of substring sub in the range start to end.

Parameters:
arr : array_like of str or unicode.
sub : [str or unicode] The substring which to be searched.
start : [ int, optional] The starting location in each string.
end : [ int, optional] The ending location in each string.

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Returns : [ndarray] the number of non-overlapping occurrences of substring sub.

Code #1 :

 `# Python program explaining``# numpy.char.count() method `` ` `# importing numpy as geek``import` `numpy as geek`` ` `# input arrays  ``in_arr ``=` `geek.array([``'Sayantan'``, ``'  Sayan  '``, ``'Sayansubhra'``])``print` `(``"Input array : "``, in_arr) `` ` `# output arrays ``out_arr ``=` `geek.char.count(in_arr, sub ``=``'an'``)``print` `(``"Output array: "``, out_arr) `
Output:
```Input array :  ['Sayantan' ' Sayan ' 'Sayansubhra']
Output array:  [2 1 1]

```

Code #2 :

 `# Python program explaining``# numpy.char.count() method `` ` `# importing numpy as geek``import` `numpy as geek`` ` `# input arrays  ``in_arr ``=` `geek.array([``'Sayantan'``, ``'  Sayan  '``, ``'Sayansubhra'``])``print` `(``"Input array : "``, in_arr) `` ` `# output arrays ``out_arr ``=` `geek.char.count(in_arr, sub ``=``'a'``, start ``=` `1``, end ``=` `8``)``print` `(``"Output array: "``, out_arr) `
Output:
```Input array :  ['Sayantan' ' Sayan ' 'Sayansubhra']
Output array:  [3 2 2]
```

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