Re: [R-sig-Geo] Possible proj.4-related error coming when specifying CRS for raster

> -Original Message- > From: Roger Bivand > Sent: Friday, April 26, 2019 15:00 > To: Alex Zvoleff > Cc: 'R-sig-Geo' > Subject: Re: [R-sig-Geo] Possible proj.4-related error coming when specifying > CRS for raster > > CAUTION: External Email > &

[R-sig-Geo] Possible proj.4-related error coming when specifying CRS for raster

etting from the CRAN server on either version. Has anyone else encountered something like this? If not, any idea whether I am on the right track? Thanks, Alex -- Alex Zvoleff, PhD Senior Director, Resilience Science Betty and Gordon Moore Center for Science Conservation International 2011 Crysta

Re: [R-sig-Geo] Unexpected behavior of raster "mask" function

) such that you can do: > > masked_image <- mask(img, msk, updatevalue=2, updateNA=TRUE) > > That is, if updateNA is TRUE, NA cells outside the mask are also updated. > > Robert > > > On Fri, Jul 18, 2014 at 11:18 AM, Alex Zvoleff > wrote: > > I am using the mask function i

[R-sig-Geo] Unexpected behavior of raster "mask" function

(2). # This cell was not affected by the mask because it was NA prior to calling mask. # Is there a way to tell the mask function to set all masked areas to updatevalue, # regardless of whether a cell is NA prior to masking? plot(masked_image) Thanks, Alex -- Alex Zvoleff Postdoctoral Assoc

Re: [R-sig-Geo] Adding smoothing factor to terrain function in raster

Whoops - somehow a double comma worked its way into the ."Call" lines in the first patch I sent. The attached patch is updated to address that issue. Alex On Fri, May 30, 2014 at 10:48 AM, Alex Zvoleff wrote: > Dear list (and Robert Hijmans in particular), > > I am using t

[R-sig-Geo] Adding smoothing factor to terrain function in raster

-TM data for mapping vegetation types. IEEE Transactions on Geoscience and Remote Sensing 41: 1056-1061. -- Alex Zvoleff Postdoctoral Associate Tropical Ecology Assessment and Monitoring (TEAM) Network Conservation International 2011 Crystal Dr. Suite 500, Arlington, Virginia 22202, USA Tel: +1-703

Re: [R-sig-Geo] issue in using projectRaster in raster library

s using the existing tool in > ArcGIS toolbox. Has someone experienced this before? Any comments will be > welcome. > Are you using "Project" or "Define Projection" in ArcGIS? "Define projection" just overwrites the existing projection rather than reprojecting

Re: [R-sig-Geo] Supplying a datatype argument to rasterEngine in spatial.tools

nt! And thanks again. > --j > > On Fri, Mar 21, 2014 at 11:12 AM, Alex Zvoleff > wrote: >> Thanks Jonathan for the updated version of spatial.tools - very useful >> in my work. Is there way to pass a "datatype" argument (as for >> writeRaster) to rasterEng

[R-sig-Geo] Supplying a datatype argument to rasterEngine in spatial.tools

erwise mentioned. I have tried adding it as an argument to rasterEngine anyway, but it appears to be ignored. I am running spatial.tools 1.3.8 on R 3.0.3. Thanks, Alex -- Alex Zvoleff Postdoctoral Associate Tropical Ecology Assessment and Monitoring (TEAM) Network Conservation International 2011 Cr

Re: [R-sig-Geo] loops in rasterEngine

> Thanks in advance, > > Yan > > > Yan Boulanger, Chercheur scientifique / Research scientist > Ressources Naturelles Canada, Canadian Forest Service > Centre de Foresterie des Laurentides > 1055, rue du P.E.P.S. > C.P. 10380, succ. Sainte-Foy > Québec (Québec) Canada

[R-sig-Geo] New "glcm" package for calculating co-occurrence textures now on CRAN

nce System (WRS, the system used by NASA for the Landsat satellites). The package supports calculating the path(s) and row(s) needed to cover a given sp or raster object, or, conversely, can calculate the polygon for a given path and row. Cheers, Alex -- Alex Zvoleff Postdoctoral Associate Tropica