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from R to ArcMap
3 messages · Rui Catarino, Robert J. Hijmans, Paul Hiemstra
Rui, For writing to raster formats that can be read by ArcGIS you can have a look at writeGDAL() in 'rgdal' or writeRaster() in 'raster'. None of these formats support cells of varying sizes (which I believe is something that levelplot might produce). Robert
On Fri, May 28, 2010 at 1:58 AM, Rui Catarino <R.Catarino at marlab.ac.uk> wrote:
Hello to all, Is there a way of transforming an output of levelplot function in a ArcMap raster? Basically I have a script from a colleague that uses data from surveys and transforms it into smooth levelplot's. I have look around but all I get is the opposite from ArcMap raster to R. Thanks in advance Rui Rui Catarino Scientific Officer Fishery Systems Group Marine Scotland - Science Scottish Government | 36 |B |Marine Laboratory, PO Box 101| 375, Victoria Road | Aberdeen AB11 9DB Tel: ?+44 (0)1224 295572 Mob:+44 (0)7530 240666 Fax: +44 (0)1224 295511 e: r.catarino at marlab.ac.uk w: http://www.scotland.gov.uk/marinescotland <http://www.scotland.gov.uk/marinescotland> ? ? ? ?[[alternative HTML version deleted]]
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2 days later
On 05/28/2010 10:58 AM, Rui Catarino wrote:
Hello to all, Is there a way of transforming an output of levelplot function in a ArcMap raster? Basically I have a script from a colleague that uses data from surveys and transforms it into smooth levelplot's. I have look around but all I get is the opposite from ArcMap raster to R.
Hi Rui, If you have your data in the following format in a data.frame (which you do not specify): x y z 1 1 3.42 1 2 4.51 You can transfer this to a SpatialPixelsDataFrame by: coordinates(bla) = ~x+y assuming your data.frame is named bla. See the documentation of the sp-package for more information. After this conversion you can export the data to any GIS raster format that your installation of rgdal supports. cheers, Paul
Thanks in advance Rui Rui Catarino Scientific Officer Fishery Systems Group Marine Scotland - Science Scottish Government | 36 |B |Marine Laboratory, PO Box 101| 375, Victoria Road | Aberdeen AB11 9DB Tel: +44 (0)1224 295572 Mob:+44 (0)7530 240666 Fax: +44 (0)1224 295511 e: r.catarino at marlab.ac.uk w: http://www.scotland.gov.uk/marinescotland <http://www.scotland.gov.uk/marinescotland> [[alternative HTML version deleted]]
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Drs. Paul Hiemstra Department of Physical Geography Faculty of Geosciences University of Utrecht Heidelberglaan 2 P.O. Box 80.115 3508 TC Utrecht Phone: +3130 274 3113 Mon-Tue Phone: +3130 253 5773 Wed-Fri http://intamap.geo.uu.nl/~paul http://nl.linkedin.com/pub/paul-hiemstra/20/30b/770