from sklearn.tree import DecisionTreeClassifierfrom sklearn import datasetsfrom sklearn.metrics import accuracy_scorefrom sklearn.model_selection import train_test_splitiris = datasets.load_iris(...

层次聚类:import pandas as pdimport scipy.cluster.hierarchy as schfrom sklearn.cluster import AgglomerativeClusteringfrom sklearn.preprocessing import MinMaxScalerfrom matplotlib import pyplot as plt# 读取数据

#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time: 2021/5/13 15:24# @Author: Pyuser# @Site:# @File: 尝试.py# @Software: PyCharm#studentExample 例子 练习def map_func(x):s = x.split()return (s[0], [int(s[1]

```pythona=input('')b=[]c=0for i in a:b.append(i)d=int(len(b))for i in range(d) :if b[i]=='(' :for j in range (i+1,d):if b[j] == ')':c += 1...

from snownlp import SnowNLPimport pandas as pdfrom collections import defaultdictimport osimport reimport jiebaimport codecs'''#读取评论内容的.txt文件txt = open('C:/Users/24224/Desktop/1.txt',encoding='utf-8')