On Thu, 19 Dec 2013, Josh O'Brien wrote:
On Thu, Dec 19, 2013 at 4:23 AM, Roger Bivand roger.biv...@nhh.no wrote:
On Wed, 18 Dec 2013, Josh O'Brien wrote:
...snip...
By the way, always avoid accessing S4 objects directly using @, do use
slot(obj, slotname) - the sapply should read:
area
On Fri, Dec 20, 2013 at 5:38 AM, Roger Bivand roger.biv...@nhh.no wrote:
On Thu, 19 Dec 2013, Josh O'Brien wrote:
On Thu, Dec 19, 2013 at 4:23 AM, Roger Bivand roger.biv...@nhh.no
wrote:
On Wed, 18 Dec 2013, Josh O'Brien wrote:
...snip...
By the way, always avoid accessing S4 objects
On 12/20/2013 06:20 PM, Josh O'Brien wrote:
On Fri, Dec 20, 2013 at 5:38 AM, Roger Bivand roger.biv...@nhh.no wrote:
On Thu, 19 Dec 2013, Josh O'Brien wrote:
On Thu, Dec 19, 2013 at 4:23 AM, Roger Bivand roger.biv...@nhh.no
wrote:
On Wed, 18 Dec 2013, Josh O'Brien wrote:
...snip...
On Fri, 20 Dec 2013, Josh O'Brien wrote:
On Fri, Dec 20, 2013 at 5:38 AM, Roger Bivand roger.biv...@nhh.no wrote:
On Thu, 19 Dec 2013, Josh O'Brien wrote:
On Thu, Dec 19, 2013 at 4:23 AM, Roger Bivand roger.biv...@nhh.no
wrote:
On Wed, 18 Dec 2013, Josh O'Brien wrote:
...snip...
By
On Wed, 18 Dec 2013, Josh O'Brien wrote:
This is cross-posted from StackOverflow
(http://stackoverflow.com/questions/20659186/combining-polygons-and-calculating-their-area-i-e-number-of-cells-in-r),
where it has received an answer that I believe answers both questions.
Because of the forking
On Thu, Dec 19, 2013 at 4:23 AM, Roger Bivand roger.biv...@nhh.no wrote:
On Wed, 18 Dec 2013, Josh O'Brien wrote:
...snip...
By the way, always avoid accessing S4 objects directly using @, do use
slot(obj, slotname) - the sapply should read:
area = sapply(slot(SPclus, polygons), slot,
Dear All,
I have a problem with combining polygons and calculating their area.
In the following I try to provide a description of the problem:
I have a simple raster (created with R-package: raster). Using the function
rasterToPolygons I get polygons of all raster cells that contain the
value
Alex,
Do you need to create polygons? You can do things like:
m - clump(r)
freq(m)
But if you insist on polygons:
m - clump(r)
p - rasterToPolygons(m, dissolve=TRUE)
Robert
On Wed, Dec 18, 2013 at 7:08 AM, Alexander Zimmermann
alexander.zimmermann...@uni-potsdam.de wrote:
Dear All,
I have
This is cross-posted from StackOverflow
(http://stackoverflow.com/questions/20659186/combining-polygons-and-calculating-their-area-i-e-number-of-cells-in-r),
where it has received an answer that I believe answers both questions.
--
View this message in context:
