摘要： # 代码12-1 评论去重的代码 import pandas as pd import re import jieba.posseg as psg import numpy as np # 去重，去除完全重复的数据 reviews = pd.read_csv("D:/JupyterLab-Porta 阅读全文

摘要： # 代码11-1 import os import pandas as pd # 修改工作路径到指定文件夹 os.chdir("D:/十一章") # 第二种连接方式 import pymysql as pm con = pm.connect(host='localhost',user='root', 阅读全文

摘要： import pandas as pd import matplotlib.pyplot as plt inputfile = "C:\\Users\\Lenovo\\Desktop\\original_data.xls" # 输入的数据文件 data = pd.read_excel(inputfi 阅读全文

摘要： import numpy as np import pandas as pd import matplotlib.pyplot as plt plt.rcParams["font.sans-serif"] = ["SimHei"] plt.rcParams["axes.unicode_minus"] 阅读全文

摘要： import pandas as pd datafile=r"C:\Users\Lenovo\Desktop\air_data.csv" resultfile=r"D:\explore.csv" data=pd.read_csv(datafile, encoding='utf-8') explore 阅读全文

摘要： # 预测财政收入，2014、2015（y） 神经网络，用到data_1 import os import numpy as np import pandas as pd from sklearn.linear_model import LassoLars from sklearn.linear_mo 阅读全文

摘要： import pandas as pdcatering_sale="C:/Users/Lenovo/Desktop/catering_sale.xls" data=pd.read_excel(catering_sale,index_col=u'日期')print(data.describe()) i 阅读全文

摘要： import tensorflow as tf sess=tf.compat.v1.Session()a=tf.constant(32) #创建常量b=tf.constant(10) #创建常量#加法a+b+bd=tf.add_n([a,b,b])print(d) 运行结果： Tensor("Add 阅读全文

摘要： import mathimport numpy as npimport pandas as pdfrom pandas import DataFramey =[0.14 ,0.64 ,0.28 ,0.33 ,0.12 ,0.03 ,0.02 ,0.11 ,0.08 ]x1 =[0.29 ,0.50 阅读全文

摘要： 数据库的建立 import pymysql # 创建表格 db = pymysql.connect(host='localhost',user='root',password='13642205874lgw',database='mrsoft') cursor = db.cursor() curso 阅读全文