[R] spplot modifications

[David Winsemius]

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
> -- 
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>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT