4 examples of 'pandas difference between two rows' in Python

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3081def _diff(self, periods, part_cols=()):
3082 if not isinstance(periods, int):
3083 raise ValueError('periods should be an int; however, got [%s]' % type(periods))
3084 window = Window.partitionBy(*part_cols).orderBy(self._internal.index_scols)\
3085 .rowsBetween(-periods, -periods)
3086 scol = self._scol - F.lag(self._scol, periods).over(window)
3087 return self._with_new_scol(scol).rename(self.name)
128def difference(self, other):
129 """Show rows only in this table
130 """
131 pass
752def intersection(d1, d2):
753 d1 = d1.reset_index()
754 d2 = d2.reset_index()
755 return d1.merge(d2, how='inner')
326def difference(a, b):
327 def wrap(img):
328 return img.select(a).subtract(img.select(b))
329 return wrap

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