def check_compatibility(self, other, check_edges=False, precision=1E-7):
        """
        Test whether two histograms are considered compatible by the number of
        dimensions, number of bins along each axis, and optionally the bin
        edges.

        Parameters
        ----------

        other : histogram
            A rootpy histogram

        check_edges : bool, optional (default=False)
            If True then also check that the bin edges are equal within
            the specified precision.

        precision : float, optional (default=1E-7)
            The value below which differences between floats are treated as
            nil when comparing bin edges.

        Raises
        ------

        TypeError
            If the histogram dimensionalities do not match

        ValueError
            If the histogram sizes, number of bins along an axis, or
            optionally the bin edges do not match

        """
        if self.GetDimension() != other.GetDimension():
            raise TypeError("histogram dimensionalities do not match")
        if len(self) != len(other):
            raise ValueError("histogram sizes do not match")
        for axis in range(self.GetDimension()):
            if self.nbins(axis=axis) != other.nbins(axis=axis):
                raise ValueError(
                    "numbers of bins along axis {0:d} do not match".format(
                        axis))
        if check_edges:
            for axis in range(self.GetDimension()):
                if not all([abs(l - r) < precision
                    for l, r in zip(self._edges(axis), other._edges(axis))]):
                    raise ValueError(
                        "edges do not match along axis {0:d}".format(axis))
Test whether two histograms are considered compatible by the number of
        dimensions, number of bins along each axis, and optionally the bin
        edges.

        Parameters
        ----------

        other : histogram
            A rootpy histogram

        check_edges : bool, optional (default=False)
            If True then also check that the bin edges are equal within
            the specified precision.

        precision : float, optional (default=1E-7)
            The value below which differences between floats are treated as
            nil when comparing bin edges.

        Raises
        ------

        TypeError
            If the histogram dimensionalities do not match

        ValueError
            If the histogram sizes, number of bins along an axis, or
            optionally the bin edges do not match