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我試圖將數據存儲爲hdf格式,並且希望將默認數據類型設置爲表格,以便日後可以查詢。熊貓不修改默認的hdf格式
我使用的基本代碼:
import pandas as pd
from numpy import random as R
pd.set_option('io.hdf.default_format','table')
s = pd.Series(R.randn(5), index=['a', 'b', 'c', 'd', 'e'])
store = pd.HDFStore('store.h5')
store['s'] = s
print store['s']
a = pd.read_hdf('store.h5','s',where="index=='a'")
print a
然而,它輸出
Traceback (most recent call last):
File "C:\Users\User\Documents\Project work\GalaxyFitting\tests\pandas_test.py", line 3, in <module>
pd.set_option('io.hdf.default_format','table')
File "C:\python27\lib\site-packages\pandas\core\config.py", line 230, in __call__
return self.__func__(*args, **kwds)
File "C:\python27\lib\site-packages\pandas\core\config.py", line 143, in _set_option
_set_multiple_options(args, silent)
File "C:\python27\lib\site-packages\pandas\core\config.py", line 114, in _set_multiple_options
_set_single_option(k, v, silent)
File "C:\python27\lib\site-packages\pandas\core\config.py", line 98, in _set_single_option
key = _get_single_key(pat, silent)
File "C:\python27\lib\site-packages\pandas\core\config.py", line 76, in _get_single_key
raise KeyError('No such keys(s)')
KeyError: 'No such keys(s)'
[Finished in 0.8s]
這究竟是爲什麼?所有我所做的就是從the documentation
感謝
這要求> = 0.13。 (它在文檔中沒有提到,情況就是如此,請謹慎爲文檔修復做一個PR)? – Jeff