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你好〜你能幫我解決問題嗎?DataFrame的對象沒有屬性'排序'
【Anaconda3-4.4.0】
import pandas as pd
from sqlalchemy import create_engine
engine = create_engine('mysql+pymysql://root:[email protected]:3306/mysql?charset=utf8')
sql = pd.read_sql('all_gzdata', engine, chunksize = 10000)
counts = [ i['fullURLId'].value_counts() for i in sql]
counts = pd.concat(counts).groupby(level=0).sum()
counts = counts.reset_index()
counts.columns = ['index', 'num']
counts['type'] = counts['index'].str.extract('(\d{3})')
counts_ = counts[['type', 'num']].groupby('type').sum()
上面的代碼是正常的,但如果我添加下面的句子,蟒蛇警告說「‘數據幀’對象有沒有屬性‘排序’」
counts_.sort('num', ascending = False)