Hi All,
I have a question about time-series in R. For example, I have a variable
with several years' data (continuous years), while each year has 12 months.
When use aggregate function, it says that it calculates the annual mean
value of this variable. But I think it's problematic. What does aggr
gdalwarp is not for shapefiles
Dominic: at the command line with GDAL installed you can use *ogr2ogr*
to subset and otherwise manipulate shapefiles and that may be your
best route. http://www.gdal.org/ogr_utilities.html
But, what is the size of the component files? Sometimes it's the .shp
that i
On Mon, 22 Apr 2013, Robert J. Hijmans wrote:
I am using package spdep. I have a listw object (lw) and a vector of
values (y) and I want to make a Moran scatterplot (with unadjusted
values):
library(spdep)
m <- matrix(c(0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0,
0, 1, 0, 0, 1, 0,
I am using package spdep. I have a listw object (lw) and a vector of
values (y) and I want to make a Moran scatterplot (with unadjusted
values):
library(spdep)
m <- matrix(c(0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0,
0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0), ncol=6)
lw <- m
On Mon, 22 Apr 2013, Philip A. Viton wrote:
Consider:
library(rgeos)
mls<-readWKT("MULTILINESTRING((3 4, 10 50, 20 25),(30 30, 70 50, 24 55)
,(30 12, 50 5, 65 7))")
length(mls)
#[1] 1
mls1<-readWKT("GEOMETRYCOLLECTION(LINESTRING(3 4, 10 50, 20 25),
LINESTRING(30 30, 70 50, 24 5
On 04/22/2013 07:04 PM, Philip A. Viton wrote:
> Consider:
>
> library(rgeos)
> mls<-readWKT("MULTILINESTRING((3 4, 10 50, 20 25),(30 30, 70 50, 24 55)
> ,(30 12, 50 5, 65 7))")
>
> mls is, as expected, a SpatialLines object, and
> plotting it shows that indeed it has three individ
Consider:
library(rgeos)
mls<-readWKT("MULTILINESTRING((3 4, 10 50, 20 25),(30 30, 70 50, 24 55)
,(30 12, 50 5, 65 7))")
mls is, as expected, a SpatialLines object, and
plotting it shows that indeed it has three individual
lines. My question is: is there some way to subset this
obje
Dear bloggers,
I have been working with maps lately, and I am quite new to the environment.
What I want to do is obtain a main map of Spain mainland (spain.main) and
one selection for the canary islands (spain.canarias) that are made by
selection 51 and 52 and be coloured according to certain cat
What kind of operation do you need to perform in the shapefiles?
Depending on it, one solution could be calling gdal commands from within R, by
using system(). For example:
system('gdalwarp argument1 argument2 argument3 argument4')
Greetings,
--
Thiago V. dos Santos
PhD student
Land and Atmosp
Hello everyone,
I have a problem with reading a shape of 300 MB in R. My RAM limits are 8
GB. So, i can´t work with this shape, because it needs more than 8GB. Have
anybody an idea how to handle this kind of cases?
Best regards,
Dominic
[[alternative HTML version deleted]]
Dear Listmembers,
I have a 40 000 x 40 000 GeoTIFF file that I need to crop to an area
of interest (perhaps about 1000 x 1000 pixels, 25 x 25 m grid). The
file seems to be in the Lambert Azimuthal Equal Area Projection
(coord. ref. : +proj=laea +lat_0=52 +lon_0=10 +x_0=4321000
+y_0=321 +ellps=
On Sun, 21 Apr 2013, Kirill Müller wrote:
On 04/21/2013 08:31 PM, Roger Bivand wrote:
You could ask there what resources they would need to offer less antiquated
packages for stable, which is your specific problem - testing and unstable
are not up to date, but are not bad. The only practical s
12 matches
Mail list logo
