from pandas import (DataFrame, HDFStore)
import pandas as pd
import numpy as np
import time
d1 = np.random.random(size=(100000, 250000))
d2 = np.random.random(size=(100000, 250000))
timestr = time.strftime("%Y%m%d-%H%M%S")
#hf = h5py.File('/gonzo/hdf5/'+timestr+'-data.h5', 'w')
hf = HDFStore('/gonzo/hdf5/' + timestr + '-data.h5')
df = DataFrame(np.random.randn(5, 3), columns['A', 'B', 'C'])
store.put('d1', df, format='table', data_columns=True)
hf.create_dataset('dataset_1', data=d1)
hf.create_dataset('dataset_2', data=d2)
hf.close()
