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摘要： # -*- coding: utf-8 -*- # 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:/chapter11/demo") # 第一种连接方式 from sqlalchemy import create_en 阅读全文

摘要： import pandas as pd import matplotlib.pyplot as plt inputfile =r"C:\Users\admin\Documents\WeChat Files\wxid_y7tudslfhqvz22\FileStorage\File\2023-03\or 阅读全文

摘要： # -*- coding: utf-8 -*- # 代码8-1 查看数据特征 import numpy as np import pandas as pd inputfile = r'E:\微信\WeChat Files\wxid_y7tudslfhqvz22\FileStorage\File\20 阅读全文

摘要： import numpy as np import matplotlib.pyplot as plt from datetime import datetime import seaborn as sns from sklearn.preprocessing import StandardScale 阅读全文

摘要： #-*- coding: utf-8 -*- # 代码6-1 import numpy as np import pandas as pd inputfile = '../data/data.csv' # 输入的数据文件 data = pd.read_csv(inputfile) # 读取数据 # 阅读全文

摘要： import pandas as pd import matplotlib.pyplot as plt import numpy as np ##读取数据 url = r"D:\资料\python\数据\catering_fish_congee.xls" data = pd.read_excel(u 阅读全文

摘要： vgg代码如下： 1 import tensorflow as tf 2 from tensorflow import keras 3 from tensorflow.keras import layers, regularizers 4 import numpy as np 5 import os 阅读全文

摘要： 1 # -*- coding: utf-8 -*- 2 """ 3 Created on Mon Apr 11 19:10:39 2022 4 5 @author: 10320 6 """ 7 8 import tensorflow as tf 9 from tensorflow import ke 阅读全文

摘要： import pandas as pd import numpy as np import matplotlib.pyplot as plt def sigmoid(x): # 定义网络激活函数 return 1/(1+np.exp(-x)) data_tr = pd.read_csv(r'D:\A 阅读全文

摘要： import wx class MyFrame(wx.Frame): def __init__(self,parent,id): wx.Frame.__init__(self,parent,id,title="班级信息收集程序",size=(600,400)) pl = wx.Panel(self) 阅读全文