[R-sig-Geo] Problems generating RasterStack object

Francisco Rodriguez Sanchez f.rodriguez.sanc at gmail.com
Fri Jun 21 11:56:09 CEST 2013

Hi Gerardo,

It would help if you could provide a reproducible example to spot the 
problem... Anyway, try the spatial_sync_raster function in the 
spatial.tools package 
(http://cran.at.r-project.org/web/packages/spatial.tools/index.html). It 
will easily match the projection, resolution and extent of your rasters 
to a reference raster

Hope it helps


El 21/06/2013 00:53, Gerardo escribió:
> Hi all. I have a set of Raster layers I want to use to generate 
> species distribution models. Initially the files had all different 
> projections, resolution and extent. So i resampled and cropped them 
> with a mask layer with the extent I wanted. All was done in R. After 
> the processing only a few of the layers had the same extent and so 
> they couldn't be stacked with stack(files). I also tried creating an 
> extent object with the exact extension I wanted, but nothing worked, 
> most files ended up with some degree of error. The quick=T argument 
> returned another error that said the a character string was expected. 
> Is there a function or a procedure to equalise the extent of all the 
> layers?
> Regards
> Gerardo Martin
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Dr Francisco Rodriguez-Sanchez
Forest Ecology and Conservation Group
Department of Plant Sciences
University of Cambridge
Downing Street
Cambridge CB2 3EA
United Kingdom

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