python计算数组中出现的所有元素并统计出现次数

Posted 2022-09-20 miaoqianling

 1 #从文本中获取，并且统计
 2 import matplotlib.pyplot as plt
 3 import numpy as np
 4 
 5 
 6 f = open(‘TXT/123.txt‘)
 7 lines = f.readlines()
 8 data = []
 9 
10 for line in lines:
11     data.append(int(line))
12 data = sorted(data)
13 print(data)
14 
15 unique_data = np.unique(data)
16 print(unique_data)
17 
18 resdata = []
19 for ii in unique_data:
20     resdata.append(data.count(ii))
21 print(resdata)
22 
23 fig = plt.figure()
24 plt.plot(unique_data, resdata)
25 plt.show()

 

 

 

y = sorted(y)
print(y) 
#统计出现的元素有哪些
unique_data = np.unique(y)
print(unique_data)

#统计某个元素出现的次数
resdata = []
for ii in unique_data:
resdata.append(y.count(ii))
print(resdata)