bool indexing doesn't work

[hughesadam87]

aunps[aunps > 5]

but no prob w/ aunps.data[aunps.data > 5]. Traceback seems like this is a pandas error!

need subclass dataframe...

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-68-69ec731c29d2> in <module>()
----> 1 aunps[aunps > 5]

/home/adam/Desktop/pyuvvis/pyuvvis/core/spectra.pyc in __getitem__(self, keyslice)
   1473       point we just want to return that.'''
   1474 
-> 1475       dfout = self._frame.__getitem__(keyslice)
   1476 
   1477       if isinstance(dfout, Series):

/home/adam/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/pandas/core/frame.pyc in __getitem__(self, key)
   1676             return self._getitem_multilevel(key)
   1677         else:
-> 1678             return self._getitem_column(key)
   1679 
   1680     def _getitem_column(self, key):

/home/adam/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/pandas/core/frame.pyc in _getitem_column(self, key)
   1683         # get column
   1684         if self.columns.is_unique:
-> 1685             return self._get_item_cache(key)
   1686 
   1687         # duplicate columns & possible reduce dimensionaility

/home/adam/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/pandas/core/generic.pyc in _get_item_cache(self, item)
   1050         res = cache.get(item)
   1051         if res is None:
-> 1052             values = self._data.get(item)
   1053             res = self._box_item_values(item, values)
   1054             cache[item] = res

/home/adam/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/pandas/core/internals.pyc in get(self, item, fastpath)
   2562         if self.items.is_unique:
   2563 
-> 2564             if not isnull(item):
   2565                 loc = self.items.get_loc(item)
   2566             else:

/home/adam/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/pandas/core/generic.pyc in __nonzero__(self)
    690         raise ValueError("The truth value of a {0} is ambiguous. "
    691                          "Use a.empty, a.bool(), a.item(), a.any() or a.all()."
--> 692                          .format(self.__class__.__name__))
    693 
    694     __bool__ = __nonzero__

ValueError: The truth value of a DataFrame is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().