numpy.trim_zeros — NumPy v1.13 Manual (original) (raw)
numpy. trim_zeros(filt, trim='fb')[source]¶
Trim the leading and/or trailing zeros from a 1-D array or sequence.
| Parameters: | filt : 1-D array or sequence Input array. trim : str, optional A string with ‘f’ representing trim from front and ‘b’ to trim from back. Default is ‘fb’, trim zeros from both front and back of the array. |
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| Returns: | trimmed : 1-D array or sequence The result of trimming the input. The input data type is preserved. |
Examples
a = np.array((0, 0, 0, 1, 2, 3, 0, 2, 1, 0)) np.trim_zeros(a) array([1, 2, 3, 0, 2, 1])
np.trim_zeros(a, 'b') array([0, 0, 0, 1, 2, 3, 0, 2, 1])
The input data type is preserved, list/tuple in means list/tuple out.
np.trim_zeros([0, 1, 2, 0]) [1, 2]