BUG: 'base' argument when resampling TimedelataIndex has no effect

[JonasAbernot]

import pandas as pd
import numpy as np

df = pd.DataFrame(np.random.normal(size=(100,4)))
df.index = pd.timedelta_range(start='0s', periods=100, freq='s')
print df.resample('10s',base=5)

The resampled index is still aligned to 0.
The base argument seems to never be used, it doesn't raise any error when passing base=1223456879, or base='gjhmljpouj', or even base=df

[jreback]

this is not implemented. I don't think very difficult to do this as its just a freq shift.