[R] superimposing xyplots on same scale

[baptiste auguie]

2009/9/25 Felix Andrews <felix at nfrac.org>:
> Sorry, doubleYScale is not appropriate, since you specifically want a
> common y scale.
>
> I think Baptiste was suggesting to use layer(), rather than
> as.layer():

Truth be told, I wasn't quite sure what the initial request meant. I
took it quite literally, as "superimposing two existing xyplots".
Clearly the other options that were given are much better.

Best,

baptiste