Hi Hamid, This looks a bit like a repeated measures analysis, but for a simple introduction to ANCOVA using R see the latter part of the following:
http://www.stat.columbia.edu/~martin/W2024/R8.pdf Jim On Mon, Mar 28, 2016 at 3:52 AM, HAMID REZA ASHRAFI via R-help <r-help@r-project.org> wrote: > HiI have a set of data with two independent variables, a pretest (covariate) > and posttest (dependent variable).Can anyone help me run robust ANCOVA?If you > wish I can send you the data file.yours > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.