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import pandas as pdimport reimport jieba.posseg as psgimport numpy as np # 去重,去除完全重复的数据reviews = pd.read_csv("reviews.csv")reviews = reviews[['content 阅读全文
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import osimport pandas as pd # 修改工作路径到指定文件夹os.chdir("D:/数据挖掘") # # 第一种连接方式# from sqlalchemy import create_engine # engine = create_engine('mysql+pymys 阅读全文
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import pandas as pdimport matplotlib.pyplot as plt inputfile='original_data.xls'data=pd.read_excel(inputfile) lv_non=pd.value_counts(data['有无水流'])['无' 阅读全文
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import numpy as npimport pandas as pd inputfile='GoodsOrder.csv'data=pd.read_csv(inputfile,encoding='gbk')data.info() data=data['id']description=[data 阅读全文
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import pandas as pd datafile='air_data.csv' resultfile='explore.csv' data=pd.read_csv(datafile,encoding='utf-8') explore=data.describe(percentiles=[], 阅读全文
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import pandas as pdcatering_sale=(r'D:\数据挖掘\catering_sale.xls')data=pd.read_excel(catering_sale,index_col='日期')print(data.describe()) import matplotli 阅读全文
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bp: 衣服鞋子: VGG: pytorch: 阅读全文
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Tensorflow简介 TensorFlow是采用数据流图(data flow graphs)来计算, 所以首先我们得创建一个数据流流图,然后再将我们的数据(数据以张量(tensor)的形式存在)放在数据流图中计算. 节点(Nodes)在图中表示数学操作,图中的边(edges)则表示在节点间相互联 阅读全文
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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