[R] Thinking about using two y-scales on your plot?

Allen S. Rout asr at ufl.edu
Wed Apr 2 16:39:31 CEST 2008

"hadley wickham" <h.wickham at gmail.com> writes:

> Please read this first:
> http://www.perceptualedge.com/articles/visual_business_intelligence/dual-scaled_axes.pdf
> It's a reasoned discussion of why it's a bad idea and proposes some
> alternative methods.

I've read the article, and I'm not sure if I'm in violation. :)

I've got a series of graphs I generate in R to illustrate backup
activity.  These are scaled, primarily, in bytes.  But different
activities have different costs per byte, and I augment the bytes
scale with dollars.


So the blue series corresponds to tbe blue dollars scale (and bytes)
and the green and red points correspond to the green scale (and

Am I being naughty? 

- Allen S. Rout

More information about the R-help mailing list