[R] NA's from GRASS-package

[Prof Brian Ripley]

?data.frame will show na.action is not an argument to data.frame.

na.omit(data.frame(east(G), north(G), sites1)) might be what you want.

On Mon, 13 Oct 2003, Martin Wegmann wrote:

> I run R inside GRASS and tried to obtain values of a raster file inside GRASS 
> but this raster image contains only a few relevant pixel and approx. 1.5 
> Mill. NA's, I did
> 
> G <- gmeta()
> sites1 <- rast.get(G, "sites1")
> df.sites1 <- data.frame(east(G), north(G), sites1, na.action=na.omit)
> Error in as.data.frame.default(x[[i]], optional = TRUE) :
>         can't coerce function into a data.frame
> 
> executing it without na.action works fine but with 1.5 Mill. redundant values. 
> 
> any advice how I receive the relevant 100 values without the NA's?


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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