Could you please provide us with a readable email (see below how yours
looked like to me), and with a reproducable example, so we can look into it?
--
Edzer
PUJAN RAJ REGMI wrote:
Dear list,
I tried to fit the model variogram to the experimental semivariogram. I used
the following code:
A<-rea
Hi.
How about using "gw.adapt functio", Adaptive kernel
for GWR, in spgwr package?
Regards.
--- 剋忽牽 <[EMAIL PROTECTED]> wrote:
> Hi everyone:
>
> > with the package spatstat I can do the kernel
> > density estimation in the
> > function density.ppp. but How do I use R for
> > Adaptiv
Hi,
I've used R for a few years but I'm a novice regarding the topics
discussed in this list. I would like to know if there is a package or
script that can easily access and manipulate the NARR (North American
Regional Reanalysis) database. I have a model that takes these data as
input at hou
Dear list,
I tried to fit the model variogram to the experimental semivariogram. I used
the following code:
A<-read.table(file.choose(new=FALSE), sep = "",skip=8,header=FALSE)
names(A) <- c("x", "y", "B1","B2","B3","B4")
library(sp)library(gstat)coordinates(A) =
~x+yC<-variogram(B1~x+y+x*y+x*x+y
On Tue, 20 May 2008, [EMAIL PROTECTED] wrote:
Thanks for your response. Here's what I have now.
On May 20 2008, Roger Bivand wrote:
A bit more context would help. The output of sessionInfo() at least (R and
package versions may matter), plus the preceding code, including the
definition of r
Thanks for your response. Here's what I have now.
On May 20 2008, Roger Bivand wrote:
A bit more context would help. The output of sessionInfo() at least (R and
package versions may matter), plus the preceding code, including the
definition of rams_dak.dnear3k.listw - is it row-standardised
On Tue, 20 May 2008, Sylvia Churcher wrote:
Hello all,
Being a new and cautious user of the rgdal library I am having trouble
confirming that my results are correct.
transforming vectors with long and lat values to easting and northing in zone
16, datum=NAD83
I'll obviously omit the entire ve
Hello all,
Being a new and cautious user of the rgdal library I am having trouble
confirming that my results are correct.
transforming vectors with long and lat values to easting and northing in zone
16, datum=NAD83
I'll obviously omit the entire vectors, but include the first 2 lines for
refere
On Tue, 20 May 2008, [EMAIL PROTECTED] wrote:
Hi,
I'm working on Windows with 2GB RAM and am trying to run the errorsarlm with
32 predictor variables and 10,071 records. I created my listw object using
the dnearneigh function with an upper distance limit of 3000m. I used the
following code wi
Hi,
I'm working on Windows with 2GB RAM and am trying to run the errorsarlm
with 32 predictor variables and 10,071 records. I created my listw object
using the dnearneigh function with an upper distance limit of 3000m. I used
the following code with method=Matrix to deal with memory limitation
Hi,
I am impressed by the second example . I will have to look at it closely
I am preparing a ppt for my office in which i want to show some of the
options R has in dealing with spatial data, map graphics and such and your
example is just perfect. The audience is almost "virgin" rega
Hi,
Thanks a lot. This really does the trick. I need to figure now how i am
displaying the color bar ... so i am off to figure out image.plot ;-)
Monica> Date: Tue, 20 May 2008 16:38:06 +0200> From: [EMAIL PROTECTED]> To:
[EMAIL PROTECTED]> CC: r-sig-geo@stat.math.ethz.ch> Subject: Re: [R-si
If it is of any help, you might want to take a look at this guide:
"Creating Maps for Publication using R Graphics"
http://www.nceas.ucsb.edu/scicomp/GISSeminar/UseCases/MapProdWithRGraphics/OneMapProdWithRGraphics.h
tml
The second example demonstrates how to visualize a remote sensing band usin
On Tue, 20 May 2008, Monica Pisica wrote:
Hi,
I am trying to display a geotiff using displayDataset command from rgdal
. which i can do pretty successfully but i cannot display axes for
my map i tried to use axes = TRUE and i got the error that axes is
matched by multiple arguments
Hi,
I am trying to display a geotiff using displayDataset command from rgdal .
which i can do pretty successfully but i cannot display axes for my map i
tried to use axes = TRUE and i got the error that axes is matched by multiple
arguments and if i try to set xaxs and yaxs as equal
On Tue, 20 May 2008, Edzer Pebesma wrote:
Yong, I would have loved to see your R shaking.
Unless you do seismology, of course?
This argument has been heard more often here. When processing massive grids,
please have a look at the function getRasterData in package rgdal. It allows
you to _
Yong, I would have loved to see your R shaking.
This argument has been heard more often here. When processing massive
grids, please have a look at the function getRasterData in package
rgdal. It allows you to _read_ only portions of a grid.
--
Edzer
Yong Li wrote:
Thanks Edzer and Hengl. It
Thanks Edzer and Hengl. It works.
But R is really shaking when large grids are processed. We wish there is
improvement of sp in the future like GIS handling grids.
Regards
Yong
From: Edzer Pebesma [mailto:[EMAIL PROTECTED]
Sent: Tue 20/05/2008 6:11 PM
To: Yo
Hi everyone:
with the package spatstat I can do the kernel density estimation in the
function density.ppp. but How do I use R for Adaptive kernel density
estimation.
Thanks in advance
Gordon
2008-5-20
___
R-sig-Geo mailing list
R-sig-Geo@stat.math.eth
Have you tried
Map1 <- Map[1:100,1:100]
?
Note that this works differently for SpatialGridDataFrames and
SpatialPixelsDataFrames; the first knows about [rows,cols,bands], the
second about [pixels, bands].
--
Edzer
Yong Li wrote:
Dear All,
I want to subset a large spatial grid (2000*2000) i
Dear All,
I want to subset a large spatial grid (2000*2000) into many smaller
grids for further processing in my simulation models. Could anyone do it
before and any tips will be highly appreciated?
Library(rgdal)
Map <- readGDAL("yong.img") # one image from erdras imagine
Map$va <- Map$band1
Ma
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