Wed Sep 4 16:12:30 EDT 1991 stl: seasonal trend and low pass smoothing can now have degree 0 fitting. 7 Jan 92 loess, dloess times updated to force other netlib copies to sync; some had obsolete copies for unknown reasons. 23 Jun 92 dloess bug fixes 26 Mar 96 fix memory leak in C driver predict() in dloess