def convert_to_pysal(data):
    """
    Pysal expects a distance matrix, and data formatted in a numpy array.
    This functions takes a data grid and returns those things.
    """
    w = pysal.lat2W(len(data[0]), len(data))
    data = np.array(data)
    data = np.reshape(data, (len(data)*len(data[0]), 1))
    return w, data