I tried that too, it doesn't work because of the way I wrote the code.
Listing y as free or not giving it a limit makes the scale go from -0.5 to
0.5, which is useless. This is what my code looks like now (it's S-Plus
code, btw)-- I'll try reading up on lattices in R to see if I can come up
with something better.

par(mfrow = c(2,2))
unique.id <- unique(d1$ID)
unique.id <- sort(unique.id)
for(j in unique.id){
temp.id <- d1[d1$ID==j,]
unique.dose <-unique(temp.id$DOSE)
plot(0,0,type="n",
xlab= "Time (hr)",ylab="Concentration (ug/L)",
xlim=c(0,32),ylim=c(0,200),
main=paste("ID",j)
)
for(i in unique.dose){
temp.subanddose <- temp.id[temp.id$DOSE==5,]
points(temp.subanddose$TAD,
temp.subanddose$DV,col=1,pch=1,)
points(temp.subanddose$TAD,
temp.subanddose$IPRE,type="l",col=1)}
for(i in unique.dose){
temp.subanddose <- temp.id[temp.id$DOSE==7,]
points(temp.subanddose$TAD,
temp.subanddose$DV,col=2,pch=2,)
points(temp.subanddose$TAD,
temp.subanddose$IPRE,type="l",col=2)}
for(i in unique.dose){
temp.subanddose <- temp.id[temp.id$DOSE==10,]
points(temp.subanddose$TAD,
temp.subanddose$DV,col=3,pch=3,)
points(temp.subanddose$TAD,
temp.subanddose$IPRE,type="l",col=3)}
key(text=list(c("5 mg", "7 mg", "10 mg")),lines=list(type=rep
("l",3),col=1:3),border=T,corner=c(1,1))
}



On Fri, Oct 15, 2010 at 1:31 AM, David Winsemius <dwinsemius@comcast.net>wrote:

>
> On Oct 15, 2010, at 3:46 AM, Anh Nguyen wrote:
>
>  Hello Dennis,
>>
>> That's a very good suggestion. I've attached a template here as a .png
>> file,
>> I hope you can view it. This is what I've managed to achieve in S-Plus (we
>> use S-Plus at work but I also use R because there's some very good R
>> packages for PK data that I want to take advantage of that is not
>> available
>> in S-Plus). The only problem with this is, unfortunately, I cannot figure
>> out how make the scale non-uniform and I hope to fix that.
>>
>
> That would be easy if your efforts which I have not yet seen were in
> lattice. If htat were the case then adding this would solve you problem:
>
> scales=list(y=list(relation="free")
>
> --
> David
>
>> My data looks
>> like this:
>>
>> ID        Dose         Time         Conc          Pred ...
>> 1         5               0              0                0
>> 1         5               0.5           6                8
>> 1         5               1             16               20
>> ...
>> 1         7               0              0                0
>> 1         7               0.5          10               12
>> 1         7               1             20               19
>> ...
>> 1        10              3             60               55
>> ...
>> 2        5                12           4                 2
>> ...
>> ect
>>
>>
>> I don't care if it's ggplot or something else as long as it looks like how
>> I
>> envisioned.
>>
>>
>>
>>
>> On Fri, Oct 15, 2010 at 12:22 AM, Dennis Murphy <djmuser@gmail.com>
>> wrote:
>>
>>  I don't recall that you submitted a reproducible example to use as a
>>> template for assistance. Ista was kind enough to offer a potential
>>> solution,
>>> but it was an abstraction based on the limited information provided in
>>> your
>>> previous mail. If you need help, please provide an example data set that
>>> illustrates the problems you're encountering and what you hope to achieve
>>> -
>>> your chances of a successful resolution will be much higher when you do.
>>> BTW, there's a dedicated newsgroup for ggplot2:
>>> look for the mailing list link at  http://had.co.nz/ggplot2/
>>>
>>> HTH,
>>> Dennis
>>>
>>>
>>> On Thu, Oct 14, 2010 at 10:02 PM, Anh Nguyen <eatabanana@gmail.com>
>>> wrote:
>>>
>>>  I found 2 problems with this method:
>>>>
>>>> - There is only one line for predicted dose at 5 mg.
>>>> - The different doses are 5, 7, and 10 mg but somehow there is a legend
>>>> for
>>>> 5,6,7,8,9,10.
>>>> - Is there a way to make the line smooth?
>>>> - The plots are also getting a little crowded and I was wondering if
>>>> there
>>>> a
>>>> way to split it into 2 or more pages?
>>>>
>>>> Thanks for your help.
>>>>
>>>> On Thu, Oct 14, 2010 at 8:09 PM, Ista Zahn <izahn@psych.rochester.edu
>>>>
>>>>> wrote:
>>>>>
>>>>
>>>>  Hi,
>>>>> Assuming the data is in a data.frame named "D", something like
>>>>>
>>>>> library(ggplot2) # May need install.packages("ggplot2") first
>>>>> ggplot(D, aes(x=Time, y=Concentration, color=Dose) +
>>>>> geom_point() +
>>>>> geom_line(aes(y = PredictedConcentration, group=1)) +
>>>>> facet_wrap(~ID, scales="free", ncol=3)
>>>>>
>>>>> should do it.
>>>>>
>>>>> -Ista
>>>>> On Thu, Oct 14, 2010 at 10:25 PM, thaliagoo <eatabanana@gmail.com>
>>>>>
>>>> wrote:
>>>>
>>>>>
>>>>>> Hello-- I have a data for small population who took 1 drug at 3
>>>>>>
>>>>> different
>>>>
>>>>> doses. I have the actual drug concentrations as well as predicted
>>>>>> concentrations by my model. This is what I'm looking for:
>>>>>>
>>>>>> - Time vs Concentration by ID (individual plots), with each subject
>>>>>> occupying 1 plot -- there is to be 9 plots per page (3x3)
>>>>>> - Observed drug concentration is made up of points, and predicted drug
>>>>>> concentration is a curve without points. Points and curve will be the
>>>>>>
>>>>> same
>>>>>
>>>>>> color for each dose. Different doses will have different colors.
>>>>>> - A legend to specify which color correlates to which dose.
>>>>>> - Axes should be different for each individual (as some individual
>>>>>>
>>>>> will
>>>>
>>>>> have
>>>>>
>>>>>> much higher drug concentration than others) and I want to see in
>>>>>>
>>>>> detail
>>>>
>>>>> how
>>>>>
>>>>>> well predicted data fits observed data.
>>>>>>
>>>>>> Any help would be greatly appreciated.
>>>>>> --
>>>>>> View this message in context:
>>>>>>
>>>>>
>>>>>
>>>> http://r.789695.n4.nabble.com/Time-vs-Concentration-Graphs-by-ID-tp2996431p2996431.html
>>>>
>>>>> Sent from the R help mailing list archive at Nabble.com.
>>>>>>
>>>>>> ______________________________________________
>>>>>> 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.
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Ista Zahn
>>>>> Graduate student
>>>>> University of Rochester
>>>>> Department of Clinical and Social Psychology
>>>>> http://yourpsyche.org
>>>>>
>>>>>
>>>>      [[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.
>>>>
>>>>
>>>
>>>  <ex.png>______________________________________________
>>
>> 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.
>>
>
> David Winsemius, MD
> West Hartford, CT
>
>

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