[R] 2-Y-axes on same plot

Ben Tupper PemaquidRiver at tidewater.net
Wed Dec 10 17:53:41 CET 2008

On Dec 10, 2008, at 9:35 AM, Joe Trubisz wrote:

> Hi...
> Is this possible in R?
> I have 2-sets of data, that were collected simultaneously using 2- 
> different data acquisition schemes.
> The x-values are the same for both.
> The y-values have different ranges (16.4-37.5 using one method,  
> 557-634 using another).
> In theory, if you plot both plots on top of each other, the graphs  
> should overlap. The problem I'm having is trying to have to  
> different sets of y-values appear in the same graph, but scaled in  
> the same vertical space. I've seen this done in publications, but  
> not sure if it can be done in R.
> Any suggestions would be appreciated.


Petr Pikal has written an easy to use function called plot.yy which  
might serve your need.  You can find it using...



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