Thanks Miha, but it doesn't look like this function supports spatial data
frames and great circle distances.
On Tue, Apr 7, 2009 at 10:54 PM, Miha Staut wrote:
>
> Dear Greg,
>
> A while back I did a similar task with the function interp.surface() from
> the fileds package. It briefly does bilin
Dear Greg,
A while back I did a similar task with the function interp.surface() from the
fileds package. It briefly does bilinear interpolation from a regular grid to
arbitrary point. It is computationally quite inexpensive since the method of
interpolation is quite simple.
Hope I understood
Hello
I trying to work out method for georectifying QuickSCAT sea-ice GIFs
(http://nereids.jpl.nasa.gov/cgi-bin/ice.cgi?show=scat). The daily
images are consistent in their layout and include overlayed graticules.
In ArcMap, I create tiepoints at the graticule intersections and
geo-rectify from t
I'm no expert here but I poked around spatialrefernce.org a bit and
found some stuff that might get you going in the right direction.
North American Equidistant Conic
http://spatialreference.org/ref/esri/102010/
South American Equidistant Conic
http://spatialreference.org/ref/esri/102032/
Any cha
Thanks for your reply Roger. I little while back I got kriging working in
the gstat package with my data, but found that for my purposes it was too
computationally expensive (read slow). Therefore I am looking for something
a little quicker. I now appreciate I cannot use interp due to it treatin
Dear list,
I am in search of a good projection with which I could run habitat
utilization models on a continental scale. The projection I am looking
for should preserve distances between points as good as possible and the
map units should be meters. I think from what I have explored so far
fr
> -Original Message-
> From: r-sig-geo-boun...@stat.math.ethz.ch
> [mailto:r-sig-geo-boun...@stat.math.ethz.ch] On Behalf
> Of gianni lavaredo
> Sent: Tuesday, April 07, 2009 4:44 PM
> To: r-sig-geo@stat.math.ethz.ch
> Subject: [R-sig-Geo] problem to module MERGE GRID in RSAGA
>
> Dear R
Hi all,
I'm looking for zip code shapefiles for Italy and France. Has anyone come
across these by any chance?
thank you!
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Dear R Users
I have a problem to understand the loop merge in RSAGA
I have this file (not order name)
DEM2644147
DEM2644148
DEM2644149
DEM2744150
DEM2744155
DEM2744168
I did a file list in CSV:
path<- ("C:/mydata/")
temp <- paste(path,"input.csv", sep="")
input <- read.csv(temp, header = TRUE
Anwesha,
Assuming you want the data timestep by timestep (but you can adjust it
for all timesteps, pixel by pixel) you can do something like the
below. I copied it straight from ?get.var.ncdf
library(ncdf)
ncdata<-open.ncdf("air.2m.1950-1999.nc")
lon<-get.var.ncdf(ncdata,"lon")
lat<-get.var.ncd
Hi Greg,
Yes, there are many possibilities for downscaling grids in R, so you are at the
right place. :)
1. If you only wish to downscale climatic grids (e.g. using splines), then
probably the most
efficient (fastest; can handle large grids) way is to use the downscaling
method in SAGA:
>
Dear list,
I have the following problem: my dataset contains some events (points) and a
studyarea, I used some spatstat functions and now I want to use the
bandwidth estimation mse2d() in the splancs package. My problem is to
convert the spatstat owin-object (studyarea) to use it in the splanc
On Mon, 6 Apr 2009, Don MacQueen wrote:
I am finding that plotting a SpatialPolygonsDataFrame object
fails when the base graphics packages are ahead of
sp in the search() path. This occurs when I put
require(maptools) [ or require(rgdal), or require(sp) ]
in my .Rprofile file.
I never u
i'm really sorry for that.
let me state the problem once again with the codes.
graphics.off()
> library(ncdf)
> ncdata<-open.ncdf("air.2m.1950-1999.nc")
> lon<-get.var.ncdf(ncdata,"lon")
> lat<-get.var.ncdf(ncdata,"lat")
> time<-get.var.ncdf(ncdata,"time")
> dat<-get.var.ncdf(ncdata,"air")
Error:
On Mon, 6 Apr 2009, Greg King wrote:
Hi,
I'm fairly new to R, but finding the experience a good one. However I am a
little overwhelmed by the number of packages and not sure I am necessarily
using the most appropriate ones.
Have you read the Spatial Task View on your nearest CRAN? There you
On Tue, 7 Apr 2009, Anwesha Chakrabarti wrote:
hi all,
i want to read a .netcdf file in R. the file contains one variable that has
three dimensions lon, lat and time.
and the data consists of a 192x94 matrix of the variable. whenever i'm
trying to open the file i'm getting the following error ms
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