pandas@70de129 (original) (raw)

`@@ -1116,8 +1116,7 @@ def count(self, axis='major'):

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`def shift(self, lags, freq=None, axis='major'):

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`"""

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Shift major or minor axis by specified number of leads/lags. Drops

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periods right now compared with DataFrame.shift

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Shift major or minor axis by specified number of leads/lags.

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` Parameters

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` ----------

`@@ -1128,35 +1127,13 @@ def shift(self, lags, freq=None, axis='major'):

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` -------

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` shifted : Panel

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` """

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values = self.values

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items = self.items

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major_axis = self.major_axis

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minor_axis = self.minor_axis

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-

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`if freq:

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`return self.tshift(lags, freq, axis=axis)

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if lags > 0:

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vslicer = slice(None, -lags)

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islicer = slice(lags, None)

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elif lags == 0:

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vslicer = islicer = slice(None)

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else:

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vslicer = slice(-lags, None)

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islicer = slice(None, lags)

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-

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axis = self._get_axis_name(axis)

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if axis == 'major_axis':

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values = values[:, vslicer, :]

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major_axis = major_axis[islicer]

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elif axis == 'minor_axis':

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values = values[:, :, vslicer]

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minor_axis = minor_axis[islicer]

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else:

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if axis == 'items':

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`raise ValueError('Invalid axis')

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return self._constructor(values, items=items, major_axis=major_axis,

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minor_axis=minor_axis)

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return super(Panel, self).shift(lags, freq=freq, axis=axis)

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`def tshift(self, periods=1, freq=None, axis='major', **kwds):

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`return super(Panel, self).tshift(periods, freq, axis, **kwds)