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# -*- 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
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posted @ 2023-04-03 15:14
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import pandas as pd import matplotlib.pyplot as plt inputfile = 'E:\Python/original_data.xls' # 输入的数据文件 data = pd.read_excel(inputfile) # 读取数据 # 查看有无水
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posted @ 2023-03-27 16:02
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# -*- coding: utf-8 -*- # 代码8-1 查看数据特征 import numpy as np import pandas as pd inputfile = 'D:\my/GoodsOrder.csv' # 输入的数据文件 data = pd.read_csv(inputfil
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posted @ 2023-03-15 16:22
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import numpy as np import matplotlib.pyplot as plt from datetime import datetime import seaborn as sns from sklearn.preprocessing import StandardScale
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posted @ 2023-03-08 10:47
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# 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 # 描述性统计分析 description = [
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posted @ 2023-03-05 21:32
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# -*- coding: utf-8 -*- """ Spyder Editor This is a temporary script file. """ import pandas as pd import matplotlib.pyplot as plt plt.rcParams['font.
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posted @ 2023-02-26 19:58
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vgg import tensorflow as tf from tensorflow import keras from tensorflow.keras import layers, regularizers import numpy as np import os import cv2 imp
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posted @ 2022-05-16 00:10
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import tensorflow as tf from tensorflow import keras # Helper libraries import numpy as np import matplotlib.pyplot as plt print(tf.__version__) fashi
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posted @ 2022-04-24 23:53
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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('C:/Us
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posted @ 2022-03-18 17:53
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import pandas as pdimport numpy as npimport 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('C:/User
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posted @ 2022-03-18 17:43
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