numpy.searchsorted()函數用於在排序的數組arr中查找索引，這樣，如果在索引之前插入元素，arr的順序仍將保留。在這裏，二進製搜索用於查找所需的插入索引。
用法： numpy.searchsorted(arr, num, side=’left’, sorter=None)
參數：
arr :[數組]輸入數組。如果sorter為None，則必須按升序對其進行排序，否則sorter必須是對其進行排序的索引數組。
num :[數組]我們要插入到arr中的值。
side :['left'，'right']，可選。如果為“ left”，則給出找到的第一個合適位置的索引。如果為“正確”，則返回上一個這樣的索引。如果沒有合適的索引，則返回0或N(其中N是a的長度)。
num :[數組，可選]整數索引數組，將數組a升序排列。它們通常是argsort的結果。
Return :[索引]，與num形狀相同的插入點數組。
代碼1：工作
# Python program explaining
# searchsorted() function
import numpy as geek
# input array
in_arr = [2, 3, 4, 5, 6]
print ("Input array:", in_arr)
# the number which we want to insert
num = 4
print("The number which we want to insert:", num)
out_ind = geek.searchsorted(in_arr, num)
print ("Output indices to maintain sorted array:", out_ind)輸出：
Input array: [2, 3, 4, 5, 6] The number which we want to insert: 4 Output indices to maintain sorted array: 2
代碼2：
# Python program explaining
# searchsorted() function
import numpy as geek
# input array
in_arr = [2, 3, 4, 5, 6]
print ("Input array:", in_arr)
# the number which we want to insert
num = 4
print("The number which we want to insert:", num)
out_ind = geek.searchsorted(in_arr, num, side ='right')
print ("Output indices to maintain sorted array:", out_ind)輸出：
Input array: [2, 3, 4, 5, 6] The number which we want to insert: 4 Output indices to maintain sorted array: 3
代碼3：
# Python program explaining
# searchsorted() function
import numpy as geek
# input array
in_arr = [2, 3, 4, 5, 6]
print ("Input array:", in_arr)
# the numbers which we want to insert
num = [4, 8, 0]
print("The number which we want to insert:", num)
out_ind = geek.searchsorted(in_arr, num)
print ("Output indices to maintain sorted array:", out_ind)輸出：
Input array: [2, 3, 4, 5, 6] The number which we want to insert: [4, 8, 0] Output indices to maintain sorted array: [2 5 0]
相關用法
注：本文由純淨天空篩選整理自jana_sayantan大神的英文原創作品 numpy.searchsorted() in Python。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。