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

[Gabor Grothendieck]

Try this:

library(zoo)
# ignore the fact that months have different lengths
z <- with(airquality, zoo(cbind(Wind, Temp), Month + (Day - 1)/31))
plot(z) # each on separate plot stacked above each other
plot(z, screen = 1) # both on same plot

library(lattice)
xyplot(z)
xyplot(z, screen = 1)

?plot.zoo has examples of using two y axes on the same plot


On Tue, Aug 4, 2009 at 5:33 PM, Jason Rupert<jasonkrupert at yahoo.com> 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.
>
> Thanks for any feedback and insights.
>
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