ea36b28c92b4f5f8314707051ee936fd2393bfd5,pmdarima/utils/array.py,,diff_inv,#Any#Any#Any#Any#,318

Before Change

    // R code: if (length(xi) != lag * differences)
    // R code:   stop(""xi" does not have the right length")
    if xi is None:
        xi = np.ndarray(shape=[1, lag * differences], dtype=float)

    if xi.shape[1] != (lag * differences):
        raise IndexError(""xi" does not have the right length")

After Change

    if x.ndim == 1:
        return _diff_inv_vector(x, lag, differences, xi)
    elif x.ndim == 2:
        return _diff_inv_matrix(x, lag, differences, xi)
    raise ValueError("only vector and matrix inverse differencing "
                     "are supported")

Instances