I read your website but still don't know the difference between the three
formulas...

Thank you!

On Mon, Jun 4, 2012 at 11:14 PM, Joshua Wiley <jwiley.psych@gmail.com>wrote:

> Hi Michael,
>
> This is far from exhaustive (I wrote it as an introduction some years
> ago) but you may find it useful to start:
> https://joshuawiley.com/R/formulae_in_R.aspx
>
> Cheers,
>
> Josh
>
> On Mon, Jun 4, 2012 at 9:06 PM, Michael <comtech.usa@gmail.com> wrote:
> > Hi all,
> >
> > Could you please point me to good materials on various
> > tricks/intuitions/techniques of regression, and hopefully in R?
> >
> > For example, what does lm(y~ x * w - 1) mean vs. lm(y ~ x/w -1 ) vs. lm
> (y
> > ~ x:w-1), etc...
> >
> > I just found that even simple linear regression is not that simple and
> > there are a lot of tricks/techniques in using them...
> >
> > Hopefully I can find good materials on these!
> >
> > Thank you!
> >
> >        [[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<http://www.r-project.org/posting-guide.html>
> > and provide commented, minimal, self-contained, reproducible code.
>
>
>
> --
> Joshua Wiley
> Ph.D. Student, Health Psychology
> Programmer Analyst II, Statistical Consulting Group
> University of California, Los Angeles
> https://joshuawiley.com/
>

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