> -Original Message-
> From: r-sig-geo-boun...@stat.math.ethz.ch [mailto:r-sig-geo-
> boun...@stat.math.ethz.ch] On Behalf Of Roberto Badilla Fuentes
> Sent: Friday, October 01, 2010 12:42 PM
> To: r-sig-geo
> Subject: [R-sig-Geo] Random Movement Generator
>
> Hi All,
>
> Is there a funct
> -Original Message-
> From: Matthew Landis [mailto:lan...@isciences.com]
> Sent: Tuesday, August 10, 2010 12:56 PM
> To: r-sig-geo@stat.math.ethz.ch; Andy Bunn
> Subject: Re: [R-sig-Geo] drop layer/band from SpatialGridDataFrame
>
> Andy - how about these two
> -Original Message-
> From: Michael Sumner [mailto:mdsum...@gmail.com]
> Sent: Monday, August 09, 2010 11:28 PM
> To: Andy Bunn
> Cc: r-sig-geo@stat.math.ethz.ch
> Subject: Re: [R-sig-Geo] drop layer/band from SpatialGridDataFrame
>
> Do you mean "layer&q
I have a SpatialGridDataFrame with 325 variables in the @ data slot. I want to
drop the first layer. Seems simple enough. Any help? Thanks, Andy
> str(monthly.sp)
Formal class 'SpatialGridDataFrame' [package "sp"] with 6 slots
..@ data :'data.frame': 8060 obs. of 325 variables:
.. ..$
> -Original Message-
> From: Robert J. Hijmans [mailto:r.hijm...@gmail.com]
> Sent: Friday, July 23, 2010 12:31 PM
> To: Andy Bunn
> Cc: r-sig-geo@stat.math.ethz.ch
> Subject: Re: [R-sig-Geo] SpatialGridDataFrame to netCDF via ncdf on
> Windows
>
> Andy, th
Hello, I have a series of a few dozen SpatialGridDataFrame objects that I would
like to write as a single netCDF object - i.e., a 2D field (x,y) as a function
of time (t) containing one time-varying variable (z). Given the example below
I'd like to create one netCDF object containing t1 and t2.
> Well, you dont say in what way it doesn't work. I get:
>
> >
> download.file('ftp://ocs.oce.orst.edu/pub/prism/us/grids/tdmean/20
> 00-2009/us_tdmean_2004.01.gz',tmp)
> trying URL
> 'ftp://ocs.oce.orst.edu/pub/prism/us/grids/tdmean/2000-2009/us_tdm
> ean_2004.01.gz'
> Error in
> download.f
Howdy again,
This is a little off-topic for sig-geo, but I thought somebody might be able
to help here easier than r-help.
Can somebody please tel me why this works:
tmp <- tempfile()
download.file('ftp://ftp.stats.ox.ac.uk/pub/datasets/csb/ch11b.dat',tmp)
unlink(tmp)
While this doesn't:
tmp <
> On Thu, 22 Jun 2006, Andy Bunn wrote:
>
> > Howdy all: I have a simple question. Given two sp objects, a
> > SpatialGridDataFrame tdmean and SpatialLinesDataFrame states I
> want to plot
> > tdmean as an image and draw the lines on top. Can this be done with sp?
&
Howdy all: I have a simple question. Given two sp objects, a
SpatialGridDataFrame tdmean and SpatialLinesDataFrame states I want to plot
tdmean as an image and draw the lines on top. Can this be done with sp?
> class(tdmean)
[1] "SpatialGridDataFrame"
attr(,"package")
[1] "sp"
> is.projected(tdme
pply(foo[,'z',], function(x) max(c(x, 0)))
>
Thanks! -A
>THK
>
>On 5/26/06, Andy Bunn <[EMAIL PROTECTED]> wrote:
>>
>> > > This is driving me nuts. I have a 3-D array that holds x,y,z
>> > > coordinates from multiple experiments. I
> > This is driving me nuts. I have a 3-D array that holds x,y,z
> > coordinates from multiple experiments. I need to clean the
> data before
> > making it sp objects. I want to set all z-values < 0 to 0. In a 2-D
> > matrix this is trivial e.g., x[,x[1,]<0] <- 0. But I'm
> stumped on how
> >
This is driving me nuts. I have a 3-D array that holds x,y,z coordinates
from multiple experiments. I need to clean the data before making it sp
objects. I want to set all z-values < 0 to 0. In a 2-D matrix this is
trivial e.g., x[,x[1,]<0] <- 0. But I'm stumped on how to do this on a 3-D
array wit
> -Original Message-
> From: Roger Bivand [mailto:[EMAIL PROTECTED]
> Sent: Friday, May 05, 2006 12:29 PM
> To: Andy Bunn
> Cc: Zev Ross; r-sig-geo@stat.math.ethz.ch
> Subject: RE: [R-sig-Geo] write.asciigrid
>
>
> On Fri, 5 May 2006, Andy Bunn wrote:
> > I second Roger's recommendation for using rgdal. I've been
> writing to and
> > fro from img files with few problems. The only problem I have
> with ArcGIS is
> > that the statistics have had to be recalculated in Arc for
> floats to get the
> > display to work correctly. But, Arc has a batch s
I second Roger's recommendation for using rgdal. I've been writing to and
fro from img files with few problems. The only problem I have with ArcGIS is
that the statistics have had to be recalculated in Arc for floats to get the
display to work correctly. But, Arc has a batch statistics tool that do
> -Original Message-
> From: Edzer J. Pebesma [mailto:[EMAIL PROTECTED]
> Sent: Friday, April 07, 2006 5:30 AM
> To: Tim Keitt
> Cc: Andy Bunn; r-sig-geo@stat.math.ethz.ch; [EMAIL PROTECTED]
> Subject: Re: [R-sig-Geo] (no subject); Clipping/Subsetting Sp objects
Hi Tim, I'm reposting b/c I forgot to include a subject line before (fried).
I'll revisit this tomorrow.
Thx,
-Andy
-Original Message-
From: Tim Keitt [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 06, 2006 5:19 PM
To: Andy Bunn
Cc: r-sig-geo@stat.math.ethz.ch
Subject: Re:
List,
I want to clip (subset) an sp object SpatialGridDataFrame using a polygon.
For instance in this example I want to create a new object of class
SpatialGridDataFrame that is clipped to the area inside the polygon on the
map.
data(meuse.grid)
coordinates(meuse.grid) <- ~x+y
gridded(meuse
Howdy List:
I'm reading in a large number of satellite images and analyzing them in R. I
know how to read a tif into R using rgdal and manipulate it. Is there a good
way to write a new tif out using the projection data from the original?
So in the example below how can I write out z as a jpg usin
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