diff(0) causes ValueError on Series and TimeSeries

[jayzed82]

import pandas as pd
import scipy as sp

df = pd.DataFrame(sp.randn(5,2))
ts = df[0]

If you run: df.diff(0)

Out[43]:
0 1
0 0 0
1 0 0
2 0 0
3 0 0
4 0 0

This works as expeted but if you run ts.diff(0) :

---

ValueError Traceback (most recent call last)

/home/jzunigavu/workspace/hf_vol_data/predictor_curves/ in ()

/home/jzunigavu/.local/lib/python2.7/site-packages/pandas-0.10.1-py2.7-linux-x86_64.egg/pandas/core/series.pyc in diff(self, periods)
1736 diffed : Series
1737 """
-> 1738 result = com.diff(self.values, periods)
1739 return Series(result, self.index, name=self.name)
1740

/home/jzunigavu/.local/lib/python2.7/site-packages/pandas-0.10.1-py2.7-linux-x86_64.egg/pandas/core/common.pyc in diff(arr, n, axis)
489 lag_indexer = tuple(lag_indexer)
490
--> 491 out_arr[res_indexer] = arr[res_indexer] - arr[lag_indexer]
492
493 return out_arr

ValueError: operands could not be broadcast together with shapes (5) (0)

[jreback]

@changhiskhan close this?

[changhiskhan]

yes please
On Apr 7, 2013 7:37 AM, "jreback" [email protected] wrote:

@changhiskhan https://github.com/changhiskhan close this?

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