Version 2.6 (11 Nov 2022) * fixed a problem in BugReports * included github page * fixed a problem for h=1 Version 2.5 (17 Jun 2020) * fixed a problem in groe() function Version 2.4 (17 Feb 2019) * included regressive variables Version 2.3 (31 May 2016) * plot.thetaModel() improved; Version 2.2 (25 May 2016) * fixed a problem in stheta() function when s=F (Thanks Oleh Komashko); * fixed a problem in otm() function with par_ini argument different of default; * fixed a problem in seasonal decomposition when part of the seasonal part is zero close; * included the additive seasonal decomposition option; * included the opt.method argument for several funcions; * included the statistical tests Shapiro-Wilk and Teraesvirta Neural Network for normality and linear 'mean' assumptions, respectively; Version 2.1 (07 Mar 2016) * improved documentation; * fixed a problem with thetaModel class; Version 2.0 (29 Feb 2016) * included the models: dotm, dstm, otm, stm, stheta, expSmoot; * included the class thetaModel; * included S3 functions: plot.thetaModel, print.thetaModel, summary.thetaModel; * the old otm() function was renamed to otm.arxiv(); * the thetaM() function was replaced by stheta() for equivalence with IJF paper; Version 1.1 (31 Jul 2015) * NAMESPACE updated; * otm() updated; Version 1.0 (15 Apr 2015)