R help - Sep 2011 - my R query

I have made a level plot in R of a variable using the lattice package.
This grid corresponds to South Asia. I am only interested in viewing
the values of this variable (aerosol optical depth) for certain
countries in South Asia. I have a dummy variable that takes the value
1 for the countries I am interested in and 0 otherwise. Is it possible
for me to colour this part of the grid black or any other colour?



Here is my R code:

levelplot(aod ~ longitude + latitude | factor(day), data = aod_Jan,
  aspect="iso", contour = TRUE, layout=c(1,1))



-- 
Arindam Fadikar
M.Stat
Indian Statistical Institute.
New Delhi, India
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On Sep 27, 2011, at 1:47 PM, arindam fadikar wrote:
> I have made a level plot in R of a variable using the lattice package.
> This grid corresponds to South Asia. I am only interested in viewing
> the values of this variable (aerosol optical depth) for certain
> countries in South Asia. I have a dummy variable that takes the value
> 1 for the countries I am interested in and 0 otherwise. Is it possible
> for me to colour this part of the grid black or any other colour?
>
> Here is my R code:
>
> levelplot(aod ~ longitude + latitude | factor(day), data = aod_Jan,
>  aspect="iso", contour = TRUE, layout=c(1,1))
This was cross-posted on StackOverflow where the user name was  
"ridhima".  I posted a response there about 45 minutes ago. Cross- 
posting at short intervals is deprecated on r-help. Obviously when one  
has not gotten an answer in some reasonable period of time, say 48  
hours, it would make sense to repost in on a different list.

-- 

David Winsemius, MD
West Hartford, CT