Hello everyone,
I can read polygon shape files into SpatialPolygonsDataFrame objects using
maptools library. But how to create a SpatialPolygonsDataFrame object, for
example, a 400 by 400 polygon?
Thank you in advance!
Best,
Shaofei
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I have another question for everyone related to the spatstat
package and model fitting.
A brief background on my question of interest: We are interested
in the spatial aggregation of snowy plover nests on a barrier
island system in response to nest fates. We hypothesize a greater
level of ag
On Mon, 9 Nov 2009, Blair Christian wrote:
Hi All,
I have a couple of comments here. I'm working on some S4 classes for
spatiotemporal data, basically extending Spatial, and I would like to
include some metadata sooner or later. I wrote some functions to get data
off of webpages (like spatiot
Hi All,
I have a couple of comments here. I'm working on some S4 classes for
spatiotemporal data, basically extending Spatial, and I would like to
include some metadata sooner or later. I wrote some functions to get data
off of webpages (like spatiotemporal ozone data from the EPA's air
explorer
On Mon, 9 Nov 2009, Tobin Cara wrote:
Dear Roger,
My Prec00 is a data frame as I imported it as a matrix from a text file.
It has 32 rows (one for each precipitation station) and 72 columns (72
hours of data at each station). I interpolated by importing a second
matrix with just the X, Y, an
Dear Roger,
My Prec00 is a data frame as I imported it as a matrix from a text file. It has
32 rows (one for each precipitation station) and 72 columns (72 hours of data
at each station). I interpolated by importing a second matrix with just the X,
Y, and Z of the original data and iterated for
On Mon, 9 Nov 2009 13:27:16 +0100 (CET) Roger Bivand
wrote:
> > For each point, I need to find the corresponding polygon. You can think
> > of the points as positions of for example earthquakes, and the polygons
> > as state or country borders. For each earthquake, I need to calculate
> > the st
On Mon, 9 Nov 2009, Karl Ove Hufthammer wrote:
Dear list members
I have a collection of polygons (a SpatialPolygonsDataFrame object, but
I can easily convert it to different formats), and a collection of
coordinate points. Each point corresponds to (at most) one polygon.
For each point, I need
Dear list members
I have a collection of polygons (a SpatialPolygonsDataFrame object, but
I can easily convert it to different formats), and a collection of
coordinate points. Each point corresponds to (at most) one polygon.
For each point, I need to find the corresponding polygon. You can thin
On Mon, 9 Nov 2009, Tobin Cara wrote:
Hello,
Has anyone ever used a DTM as their grid for interpolation and come
across this error. My DTM has pixels 100 m by 100 m, so I really do not
understand this error as it is regular. Also, this only happens when I
am doing multiple iterations in time
Hello,
Has anyone ever used a DTM as their grid for interpolation and come across this
error. My DTM has pixels 100 m by 100 m, so I really do not understand this
error as it is regular. Also, this only happens when I am doing multiple
iterations in time.
Code:
list_ked[[i]] <- krige(Prec00[
Tobin Cara wrote:
> Hello,
>
> Thank you all for your previous help. I began using R 2 weeks ago, and I am
> getting somewhere finally. I have been able to run universal kriging with a
> Digital Elevation Model trend. Now, does anyone have experience with kriging
> more than one trend variable
Hello,
Thank you all for your previous help. I began using R 2 weeks ago, and I am
getting somewhere finally. I have been able to run universal kriging with a
Digital Elevation Model trend. Now, does anyone have experience with kriging
more than one trend variable?
I assume you have to have th
On Mon, Nov 9, 2009 at 7:01 AM, Agustin Lobo wrote:
> Hi!
> Is anyone thinking on designing metadata for R spatial objects?
> I've seen there are metadata facilities in Bioconductor for genomics,
> perhaps we could get some inspiration from them?
I think you need to give us some examples of what
On Mon, 9 Nov 2009, Agustin Lobo wrote:
Hi!
Is anyone thinking on designing metadata for R spatial objects?
I've seen there are metadata facilities in Bioconductor for genomics,
perhaps we could get some inspiration from them?
You are welcome to try, naturally. The S3 data.frame object on whic
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