library(gridExtra)
?grid.arrange

I found this function convenient to me, it could arrange multiple ggplot
object on the same view window
p1 <- qplot(...)
p2 <- qplot(...)
....
grid.arrange(p1, p2, ..., nrow = 2)

different from your design, but for the same purpose I guess.

cheers

Tengfei

On Wed, Dec 7, 2011 at 5:08 PM, Michael <comtech.usa@gmail.com> wrote:

> Thanks a lot!
>
> Now I can see the individual plot, but still not the
> originally-desired multi-plot-on-one-page?
>
> Any thoughts? Thanks again!
>
> On 12/7/11, Yihui Xie <xie@yihui.name> wrote:
> > This is probably one of the most frequently asked questions. The
> > answer is to print() the objects. See R FAQ 7.22.
> >
> >
> http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-do-lattice_002ftrellis-graphics-not-work_003f
> >
> > Regards,
> > Yihui
> > --
> > Yihui Xie <xieyihui@gmail.com>
> > Phone: 515-294-2465 Web: http://yihui.name
> > Department of Statistics, Iowa State University
> > 2215 Snedecor Hall, Ames, IA
> >
> >
> >
> > On Wed, Dec 7, 2011 at 4:38 PM, Michael <comtech.usa@gmail.com> wrote:
> >> I found that if I run each "qplot" manually it would plot out
> something...
> >>
> >> but if I put it into the loop,
> >>
> >> it just doesn't work at all - sometimes it refused to plot anything...
> >>
> >
>
> ______________________________________________
> 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.
>



-- 
Tengfei Yin
MCDB PhD student
1620 Howe Hall, 2274,
Iowa State University
Ames, IA,50011-2274
Homepage: www.tengfei.name

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