[R] Stacked plots with common x-axis and different y-axis

Jim Lemon jim at bitwrit.com.au
Wed Aug 5 11:42:38 CEST 2009

Jason Rupert wrote:
> Is there a place that shows how to create two plots that are stacked on top of each other where they share a common x-axis scale, but have differnt y-axis scale?
> Say have the following data: airquality
> Stack plot(airquality$Day, airquality$Wind) on top of  plot(airquality$Day, airquality$Temp). 
> I am interested in stacking the two on top of each other with no seam, or plotting the two lines with two different y-axis scales on the same plot.  
Hi Jason,
Have a look at twoord.plot in the plotrix package.


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