python dask AttributeError: 'Series' object has no attribute 'sort_values' python dask dataframe series 排序 升序和降序
1、python dask dataframe series 升序和降序
# conding:utf-8 import time import dask.dataframe as dd import dask.array as da import gc st = time.time() # url:str="mysql+pymysql://root:123456@localhost:3306/getonroom" # &useSSL=true &serverTimezone=GMT%2B8 useUnicode=true ?characterEncoding=utf-8 # df1:dd.DataFrame = dd.read_sql_table("room1",uri=url,index_col="id") # df2:dd.DataFrame = dd.read_sql_table("room2",uri=url,index_col="id",npartitions=4) df1 = dd.read_csv('./data/room1.csv',sep=',',header=0,encoding='utf-8',dtype='object') print(type(df1)) print(df1.columns) # gen:dd.Series = df1.Gender # print(df1.Gender.groupby(df1.Gender).count().size.compute()) re:dd.Series = df1.Gender.groupby(df1.Gender).count() n:int = re.size.compute() print(n) # ds = re.nlargest(n) # 降序 ds = re.nsmallest(n) # 升序 print(ds.compute()) print(time.time()-st) gc.collect()
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