numpy字符串操作rstrip()函数
numpy.core.defchararray.rstrip(arr, chars=None) 是另一个在numpy中进行字符串操作的函数。它为arr中的每个元素返回一个去除尾部字符的副本。
参数:
arr : 类似于str或unicode的数组。
char : [str or unicode, optional] 要删除的字符集。如果省略或无,它将删除空白。chars参数不是一个前缀或后缀;它是我们想要去除的所有组合值。
返回: [ndarray] 输出str或unicode的数组,取决于输入类型。
代码#1:
# Python program explaining
# numpy.char.rstrip() method
import numpy as geek
# input arrays
in_arr = geek.array(['Sun', ' Moon ', 'Star'])
print ("Input array : ", in_arr)
out_arr = geek.char.rstrip(in_arr)
# whitespace removed from arr[1]
# as we have set chars = None
print ("Output array: ", out_arr)
输出:
Input array : ['Sun' ' Moon ' 'Star']
Output array: ['Sun' 'Moon' 'Star']
代码#2:
# Python program explaining
# numpy.char.rstrip() method
import numpy as geek
# input arrays
in_arr = geek.array([ 'Geeks', 'For', 'Geeks'] )
print ("Input array : ", in_arr)
out_arr = geek.char.rstrip(in_arr, chars ='s')
#'s' removed from arr[0] and
# arr[2] as we have set chars ='s'
print ("Output array: ", out_arr)
输出:
Input array : ['Geeks' 'For' 'Geeks']
Output array: ['Geek' 'For' 'Geek']
代码#3:
# Python program explaining
# numpy.char.rstrip() method
import numpy as geek
# input arrays
in_arr = geek.array([ 'GeeksG', 'ForG', 'Geeks'] )
print ("Input array : ", in_arr)
out_arr = geek.char.rstrip(in_arr, chars ='G')
# will strip 'G' from right side
# from each element(if exists)
print ("Output array: ", out_arr)
输出:
Input array : ['GeeksG' 'ForG' 'Geeks']
Output array: ['Geeks' 'For' 'Geeks']