Dear R-people, I tried to build a seasonal cycle sub-series plot of my time series using: monthplot(nitrat.stl, choice="seasonal") However, I only get the horizontal lines of the mean values and not the vertical lines for each year. Can anybody help me? Sincerely, Anja -- ************************************************************* Dr. Anja Eggert Universit?t Rostock Institut f?r Biowissenschaften AG Angewandte ?kologie Albert-Einstein-Str. 3 18059 Rostock T: ++49 381 498 6094 F: ++49 381 498 6072 e-mail: anja.eggert at uni-rostock.de