在搜索数小时后,我仍然无法从multiindex数据帧中将一些数据提取到新的数据帧中。如果我完全诚实的话,理解这整个多索引的东西都有很大的问题:/
数据来自经合组织,使用pandas_datareader.data作为网络。
我正在搜索如何在特定时间段内获取特定国家/地区的特定数据。
有人可以帮助我吗?
import pandas_datareader.data as web
import pandas as pd
podatki = web.DataReader('MEI_CLI', data_source='oecd')
df = pd.DataFrame(podatki)
#Below is the data that I'm searching.
#does not work!!!
df = df.xs('Original, seasonally adjusted (GDP)','Slovenia','Annual')
print(df)
真的非常感谢你!
问候,大卫
答案 0 :(得分:1)
你需要:
podatki = web.DataReader('MEI_CLI', data_source='oecd')
print (podatki)
df = podatki.xs(('Original, seasonally adjusted (GDP)', 'Slovenia', 'Annual'),
level=('Subject', 'Country','Frequency'), axis=1)
print(df)
Subject Original, seasonally adjusted (GDP)
Country Slovenia
Frequency Annual
Time
1990 NaN
1991 NaN
1992 NaN
1993 NaN
1994 NaN
1995 NaN
1996 NaN
1997 NaN
1998 NaN
1999 NaN
2000 NaN
2001 NaN
2002 NaN
...
...
但不幸的是没有数据:
print(df.dropna())
Empty DataFrame
Columns: [(Original, seasonally adjusted (GDP), Slovenia, Annual)]
Index: []