Hi Ned,
Is it an option to switch to another GDAL format, GTiff for example?
Check if this exports the NA values correctly. Not really an answer to
your question, but maybe a helpful suggestion.
cheers and good luck,
Paul
Ned Horning wrote:
I am trying to export a SpatialPixelsDataFrame
Hi
According to the manual page for distance in package raster
The function calculates the distance to cells of a RasterLayer that are NA.
wouldn't it be better letting the user select the actual value(s)
to be considered as focal pixels? The package is mainly intended to
process large raster
Hi?
Is it possible to perform a vector to raster conversion in R,
from SpatialPolygonsDataFrame to a SpatialGrid (providing the final resolution?
In particular, is it possible to do it using package raster?
(I know this can be done using gdal or grass etc, but I'm trying
to find an only R
On Sat, Nov 21, 2009 at 1:20 PM, Agustin Lobo alobolis...@gmail.com wrote:
Hi?
Is it possible to perform a vector to raster conversion in R,
from SpatialPolygonsDataFrame to a SpatialGrid (providing the final
resolution?
If what you want is a raster grid storing the value of some attribute
On Sat, 21 Nov 2009, Paul Hiemstra wrote:
Hi Ned,
Is it an option to switch to another GDAL format, GTiff for example? Check if
this exports the NA values correctly. Not really an answer to your question,
but maybe a helpful suggestion.
cheers and good luck,
Paul
Ned Horning wrote:
I am
Hi Everyone,
I have a spatial dataset (US Counties with basic Census attributes and an
attribute denoting whether or not the county has a flood protection levee)
and I used t.test to compare the means between the groups.
All of my variables show clustering and neighborhood effects. Is there a
Agus,
Please see raster::polygonsToRaster
Let 'p' be a SpatialPolygonsDF. Create an appropriate RasterLayer
object, for example use the extent of the polygons and set the
resolution.
r - raster(extent(p))
res(r) - 1
# then:
r - polygonsToRaster(p, r) # there are additional arguments to
Hi Agus,
In this function, and in all other functions in 'raster', the values
of a new RasterLayer object are written to disk if they cannot be
stored in memory (they are saved in a temporary file that is erased
the next time you load the package). To force writing to disk, and to
a more
Roger,
Thanks for the note. Using:
options=DECIMAL_PRECISION=3, mvFlag=-
did the trick.
All the best,
Ned
Roger Bivand wrote:
On Sat, 21 Nov 2009, Paul Hiemstra wrote:
Hi Ned,
Is it an option to switch to another GDAL format, GTiff for example?
Check if this exports the NA values
