[R] Overlay of simple plots

[Peter Dalgaard]

stephen sefick wrote:
> ?lines
>   
Or ?points or maybe ?matplot. Notice that there are a couple of snags, 
such as having to adjust graphical parameters in order to make room 
enough on the plot. Most introductory texts on R and R graphics  cover 
this, I think.

You can overlay arbitrary plots by setting par(new=TRUE) in between, 
although that is almost always the wrong solution. (SAS's overlay 
features are not worth cloning in my opinion. It will do things like 
automatically set up a legend, but puts in funny restrictions: plotting 
data and predicted values in the same plot is OK, plotting data by group 
OK, data and predicted values by group not OK or at least not easy.)
> On Mon, Jul 28, 2008 at 12:57 PM, Phillip R. Hunt <prhunt2005 at comcast.net>wrote:
>
>   
>> I am trying to create a graph that puts three x-y plots (age vs rate for
>> three categories ) on a single plot.  SAS does this with the overlay
>> function.  I cannot find in the R documentation a method for doing this.
>> Any
>> help would be appreciated.
>>
>>
>>
>> Thanks,
>>
>> Phill
>>
>>
>>
>>
>>
>> Phillip R. Hunt, Sc.D.
>>
>> 24 Pleasant St.
>>
>> Newfields, NH 03856
>>
>>
>>
>>
>>
>>
>>        [[alternative HTML version deleted]]
>>
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>>     
>
>
>
>   


-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
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