numpy.core.defchararray.capitalize

numpy.core.defchararray.capitalize(a)[源代码]

Return a copy of a with only the first character of each element capitalized.

Calls str.capitalize element-wise.

For 8-bit strings, this method is locale-dependent.

Parameters:
a : array_like of str or unicode

Input array of strings to capitalize.

Returns:
out : ndarray

Output array of str or unicode, depending on input types

Examples

>>> c = np.array(['a1b2','1b2a','b2a1','2a1b'],'S4'); c
array(['a1b2', '1b2a', 'b2a1', '2a1b'],
    dtype='|S4')
>>> np.char.capitalize(c)
array(['A1b2', '1b2a', 'B2a1', '2a1b'],
    dtype='|S4')