Thanks Robert, I was able to get both issues resolved by installing the
latest version of raster.

adv

On Tue, Mar 29, 2011 at 12:49 AM, Robert Hijmans <r.hijmans@gmail.com>wrote:

> Advait,
>
> > I encounter two errors; A) when using extent to crop the rasters
>
> > lims <- extent(rcmraster,180,185,300,305)
> > Error in .local(x, ...) : unused argument(s) (180, 185, 300, 305)
>
> > I also tried using lat-long values in place of the index to no avail.
>
> I cannot reproduce the problem.  You are not providing your sessionInfo(),
> but I can see that you are not using the last version of raster. Perhaps
> this problem goes away if you update raster.  It is also good practice to
> provide to make some effort to provide a self contained example of the
> problem encountered. Such as below (which suggest to me that this works):
>
> > r <- raster(nrow=356, ncol=507)
> > r[] <- 1:ncell(r)
> > s <- stack(r,r,r)
> > lims <- extent(r,180,185,300,305)
> > lims
> class       : Extent
> xmin        : 32.66272
> xmax        : 36.21302
> ymin        : -3.286517
> ymax        : -0.758427
>
>
> if you use long/lat you would need to do something like
>
> lims <- extent(-100, -50, 30, 40)
>
>
> and B) using stack
>
> s_crop <- stack(emitraster,rcmraster)
> Error in function (classes, fdef, mtable)  :
>  unable to find an inherited method for function "trim", for signature
> "integer"
>
> I do not know what you are trying to do here. Did you mean
>
> s_crop <- crop(emitraster,rcmraster)   # ?
>
> Anyway, this works for me,
>
> > b <- brick(s)
> > ss <- stack(b,b)
>
> But this probably goes wrong because you are using ncdf files; so that
> might
> be a bug. I would happily download and look at those files if you could
> establish first that the simple examples works for you like they work for
> me, but things break if you use the files instead; and that you are using
> the latest version.
>
> Best,
> Robert
>
>
>
>
>
>
> --
> View this message in context:
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>
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-- 
advait godbole

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