Top "Pytables" questions

Getting Pypy to recognize third party modules

Just a quick question, how do I get pypy to recognize third pary modules that I have in Python? For …

python pypy pytables

pd.read_hdf throws 'cannot set WRITABLE flag to True of this array'

When running pd.read_hdf('myfile.h5') I get the following traceback error: [[...some longer traceback]] ~/.local/lib/python3.6/…

python pandas pytables hdf

Missing optional dependency 'tables'. In pandas to_hdf

following code is giving me error. import pandas as pd df = pd.DataFrame({'a' : [1,2,3]}) df.to_hdf('temp.h5', …

python pandas pip hdf5 pytables

HDFStore with string columns gives issues

I have a pandas DataFrame myDF with a few string columns (whose dtype is object) and many numeric columns. I …

python-3.x pandas pytables

Building a huge numpy array using pytables

How can I create a huge numpy array using pytables. I tried this but gives me the "ValueError: array is …

python arrays numpy pytables

Converting a dataset into an HDF5 dataset

I have a dataset that I would like to convert to an HDF5 format. It is a dataset from NOAA. …

python hdf5 pytables h5py

Query HDF5 in Pandas

I have following data (18,619,211 rows) stored as a pandas dataframe object in hdf5 file: date id2 w id 100010 1980-03-31 10401 0.000839 100010 1980…

python datetime pandas hdf5 pytables

Pytables table into pandas DataFrame

Lots of information on how to read a csv into a pandas dataframe, but I what I have is a …

pandas pytables

Pandas "Group By" Query on Large Data in HDFStore?

I have about 7 million rows in an HDFStore with more than 60 columns. The data is more than I can fit …

python pandas pytables

`pip install tables` fail with ERROR:: Could not find a local HDF5 installation

Here's the detailed error message I am getting when I attempt to install PyTables on Mac OSX. calvin$ pip install …

hdf5 pytables