[R] Help! I couldn't put multiple qplot on the same page...

[Michael]

Very surprisingly in the generated multi-plot-on-the-same-page, the
titles of the sub-plots are different... but their contents are the
same(ie. the plotted curves are the same)...

How could this happen?

Any thoughts?

On 12/7/11, Yihui Xie <xie at yihui.name> wrote:
> This is another frequently asked question about ggplot2, but I don't
> know. What I can tell you is, if you use Sweave, you probably can
> consider the knitr package, which enables you to put any plots on one
> "page" (yes, I'm cheating via LaTeX); see Figure 1 in the manual:
> https://github.com/downloads/yihui/knitr/knitr-manual.pdf
>
> Regards,
> Yihui
> --
> Yihui Xie <xieyihui at 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 5:08 PM, Michael <comtech.usa at 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 at 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 at 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 at 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...
>>>>
>>>
>