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.. _routines.char:
Legacy fixed-width string functionality
=======================================
.. currentmodule:: numpy.char
.. module:: numpy.char
.. legacy::
The string operations in this module, as well as the `numpy.char.chararray`
class, are planned to be deprecated in the future. Use `numpy.strings`
instead.
The `numpy.char` module provides a set of vectorized string
operations for arrays of type `numpy.str_` or `numpy.bytes_`. For example
.. try_examples::
>>> import numpy as np
>>> np.char.capitalize(["python", "numpy"])
array(['Python', 'Numpy'], dtype='<U6')
>>> np.char.add(["num", "doc"], ["py", "umentation"])
array(['numpy', 'documentation'], dtype='<U13')
The methods in this module are based on the methods in :py:mod:`string`
String operations
-----------------
.. autosummary::
:toctree: generated/
add
multiply
mod
capitalize
center
decode
encode
expandtabs
join
ljust
lower
lstrip
partition
replace
rjust
rpartition
rsplit
rstrip
split
splitlines
strip
swapcase
title
translate
upper
zfill
Comparison
----------
Unlike the standard numpy comparison operators, the ones in the `char`
module strip trailing whitespace characters before performing the
comparison.
.. autosummary::
:toctree: generated/
equal
not_equal
greater_equal
less_equal
greater
less
compare_chararrays
String information
------------------
.. autosummary::
:toctree: generated/
count
endswith
find
index
isalpha
isalnum
isdecimal
isdigit
islower
isnumeric
isspace
istitle
isupper
rfind
rindex
startswith
str_len
Convenience class
-----------------
.. autosummary::
:toctree: generated/
array
asarray
chararray
|
