R help - Sep 2009 - spplot modifications

http://www.nabble.com/file/p25336596/Conductivity1.jpeg 

I need a little help making modifications to the image included with this
post.  First, rather than using a linear color legend to display the output
I would like to use a log-scale legend.  Thus, the legend on the right would
go from 1 to 1000, for example, with a classic log-scale gradation.  What I
hope to avoid is taking the log of the values and displaying the
"logged"
values using a linear scale.  Second, at the top of the legend there is a
random green bar that shouldn't be there.  If you know what causes this or
more importantly, how to get rid of it, please help.  I've included the code
and text files necessary to create this figure in the zip file.

Thank you,
Eric Morway
http://www.nabble.com/file/p25336596/Morway_R_Qs.zip Morway_R_Qs.zip 
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On Sep 7, 2009, at 5:29 PM, emorway wrote:
>
> http://www.nabble.com/file/p25336596/Conductivity1.jpeg
>
> I need a little help making modifications to the image included with  
> this
> post.  First, rather than using a linear color legend to display the  
> output
> I would like to use a log-scale legend.  Thus, the legend on the  
> right would
> go from 1 to 1000, for example, with a classic log-scale gradation.   
> What I
> hope to avoid is taking the log of the values and displaying the  
> "logged"
> values using a linear scale.
I don't know what you mean here, ("classic" not being a
particularly
precise term)  but suggest you look at the chapter 8 examples Figs 8.3  
- 8.5 in Sarkar's website:
http://lmdvr.r-forge.r-project.org/figures/figures.html

> Second, at the top of the legend there is a
> random green bar that shouldn't be there.
The "random green bar" is there because colors are recycled and you  
have more levels than colors.
>  If you know what causes this or
> more importantly, how to get rid of it, please help.  I've included  
> the code
> and text files necessary to create this figure in the zip file.
>
> Thank you,
> Eric Morway
> http://www.nabble.com/file/p25336596/Morway_R_Qs.zip Morway_R_Qs.zip
> -- 
> View this message in context:
http://www.nabble.com/spplot-modifications-tp25336596p25336596.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT