diff --git a/docs/pyerrors/obs.html b/docs/pyerrors/obs.html index 7da0c303..2e3aab18 100644 --- a/docs/pyerrors/obs.html +++ b/docs/pyerrors/obs.html @@ -1292,7 +1292,10 @@ new_names.append(name) new_deltas[name] = np.array(nd) new_idl[name] = ni - return (new_names, new_deltas, new_idl) + if new_names: + return (new_names, new_deltas, new_idl) + else: + return (names, deltas, idl) def derived_observable(func, data, **kwargs):