[R] add horizontal reference lines in lattice bwplot

[Gareth.Williams at csiro.au]

> -----Original Message-----
> From: PtitBleu [mailto:ptit_bleu at yahoo.fr]
> Sent: Wednesday, 13 June 2012 5:46 PM
> To: r-help at r-project.org
> Subject: Re: [R] add horizontal reference lines in lattice bwplot
> 
> Hello Gareth,
> 
> Concerning the lines, you can try :
> panel.abline(h=13)
> and
> panel.grid(h=2, v=0, y=c(11, 12), col.line="blue")
> 
> I have no idea for the annotation. Sorry.
> 
> Ptit Bleu.

Thanks! I did not understand that I needed to use the log10 of the value for the grid position to match the log scale.
The panel.abline now works. I could not get the panel.grid to work but just using abline is fine.

I also figured out how to use panel.text with my new knowledge of the grid coordinate system.

Gareth

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