>that is, equation with constant and trend is used.if i did not include > >constant or trend in the equation and run the > >command then how i can run this command in tseries. > > Dear Zahid,
you can employ ur.df() in package 'urca' or the wrapped functions from 'urca' contained in package 'fSeries', see ?ur.df and ?UnitrootTests for more information, respectively. Best, Bernhard ***************************************************************** Confidentiality Note: The information contained in this mess...{{dropped}} ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.