Hi Petr, It's not an equation. It's my mistake; the * are meant to be field separators for the example data. I should have just use blank spaces as follows:
users Group1 Group2 Group3 u1 10 5 N/A u2 6 N/A 4 u3 5 2 3 Regards Gawesh On Mon, Oct 10, 2011 at 9:32 AM, Petr PIKAL <petr.pi...@precheza.cz> wrote: > Hi > > I do not understand much about your equations. I think you shall look to > Practical Regression and Anova Using R from J.Faraway. > > Having data frame DF with columns - users, groups, results you could do > > fit <- lm(results~groups, data = DF) > > Regards > Petr > > > > > > > > Hi, > > > > I'm a newbie to R. My knowledge of statistics is mostly self-taught. My > > problem is how to measure the effect of users in groups. I can calculate > a > > particular attribute for a user in a group. But my hypothesis is that > the > > user's attribute is not independent of each other and that the user's > > attribute depends on the group ie that user's behaviour change based on > the > > group. > > > > Let me give an example: > > > > users*Group 1*Group 2*Group 3 > > u1*10*5*n/a > > u2*6*n/a*4 > > u3*5*2*3 > > > > For example, I want to be able to prove that u1 behaviour is different > in > > group 1 than other groups and the particular thing about Group 1 is that > > users in Group 1 tend to have a higher value of the attribute under > > measurement. > > > > > > Hence, can use R to test my hypothesis. I'm willing to learn; so if this > is > > very simple, just point me in the direction of any online resources > about > > it. At the moment, I don't even how to define these class of problems? > That > > will be a start. > > > > Regards > > Gawesh > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org 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. > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org 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.
