[R] Superscripts in strip labels of lattice plot

[David Winsemius]

On Jun 3, 2011, at 5:38 PM, Judith Flores wrote:

> Hello,
>
>   I need to add superscripts of the strip labels of a xyplot.
>
> For example:
>
>
> xyplot(a~b|c)
>
>   Where c has 3 factor levels: A^2, A^3 and A^4. How can I introduce
> expressions in the strip labels?

Here is an example that comes up on a search with terms expression &  
strip.default (which I thought was the correct argument to the strip  
parameter but turns out I was not remembering my documentation  
correctly:

http://finzi.psych.upenn.edu/R/Rhelp02/archive/57933.html

--

David Winsemius, MD
West Hartford, CT