numpy字符串操作isdecimal()函数
numpy.core.defchararray.isdecimal(arr)函数在每个元素中只有十进制字符时返回True,否则返回false。
参数:
arr : 类似于str或unicode的数组。
返回: [ndarray] 输出布尔的数组。
代码#1:
# Python program explaining
# numpy.char.isdecimal() method
import numpy as geek
# input array contains only digits
in_arr = geek.array([ '1000', '2000'] )
print ("Input array : ", in_arr)
out_arr = geek.char.isdecimal(in_arr)
print ("Output array: ", out_arr)
输出:
Input array : ['1000' '2000']
Output array: [ True True]
代码#2:
# Python program explaining
# numpy.char.isdecimal() method
import numpy as geek
# input array contains digits along with space and alphabets
in_arr = geek.array([ '1000 2', 'a1000', '1234 ab'] )
print ("Input array : ", in_arr)
out_arr = geek.char.isdecimal(in_arr)
print ("Output array: ", out_arr)
输出:
Input array : ['1000 2' 'a1000' '1234 ab']
Output array: [False False False]