在Python中读取HDF文件的属性

问题描述

我在读取熊猫的hdf文件时遇到问题.到目前为止，我还不知道文件的密钥.

I have a problem reading hdf file in pandas. As of now, I don't know the keys of the file.

在这种情况下，如何读取文件[data.hdf]?而且，我的文件是.hdf而不是.h5，它是否对数据获取有所不同?

How do I read the file [data.hdf] in such a case? And, my file is .hdf not .h5 , Does it make a difference it terms data fetching?

我看到您需要一个商店中的组标识符"

I see that you need a 'group identifier in the store'

pandas.io.pytables.read_hdf(path_or_buf, key, **kwargs)

我能够从pytables中获取元数据

I was able to get the metadata from pytables

File(filename=data.hdf, title='', mode='a', root_uep='/', filters=Filters(complevel=0, shuffle=False, fletcher32=False, least_significant_digit=None))
/ (RootGroup) ''
/UID (EArray(317,)) ''
  atom := StringAtom(itemsize=36, shape=(), dflt='')
  maindim := 0
  flavor := 'numpy'
  byteorder := 'irrelevant'
  chunkshape := (100,)
/X Y (EArray(8319, 2, 317)) ''
  atom := Float32Atom(shape=(), dflt=0.0)
  maindim := 0
  flavor := 'numpy'
  byteorder := 'little'
  chunkshape := (1000, 2, 100)

如何通过熊猫使其可读?

How do I make it readable via pandas?

推荐答案

首先(.hdf或.h5)没有什么区别.第二，我不确定熊猫，但是我读到HDF5键像:

First (.hdf or .h5) doesn't make any difference.Second, I'm not sure about the pandas, but I read the HDF5 key like:

import h5py
h5f = h5py.File("test.h5", "r")
h5f.keys()

或

h5f.values()

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