On Mon, 13 Jul 2009, Jim Burke wrote:
Hi everyone
I have a issue with %IN% using FALSE deep within my
R code processing. It errors if the comparison data
frames are equal.
DESIRED WORK AROUND: I would like examine my %IN% data
frame fields before submitting then to the erroring
block of code.
Hi everyone
I have a issue with %IN% using FALSE deep within my
R code processing. It errors if the comparison data
frames are equal.
DESIRED WORK AROUND: I would like examine my %IN% data
frame fields before submitting then to the erroring
block of code. Then appropriately trap this error.
Any
It turns out to be a pretty significant difference.try
image(lon,lat,mcsst)
image(lonr,latr,mcsst, add = T)
On Mon, Jul 13, 2009 at 12:04 PM, Barry Rowlingson <
b.rowling...@lancaster.ac.uk> wrote:
> On Mon, Jul 13, 2009 at 4:32 PM, Matt Oliver wrote:
> > I tried to polygon.you
On Mon, 13 Jul 2009, Barry Rowlingson wrote:
On Mon, Jul 13, 2009 at 3:26 PM, Matt Oliver wrote:
Dear r-sig-geo,
I am trying to generate a kml for an image I am producing using image().
After reading about kml generation, I'm unsure if I sould be using
kmlOverlay() or writeOGR, or some other f
On Mon, Jul 13, 2009 at 4:32 PM, Matt Oliver wrote:
> I tried to polygon.you are right...too slow
>
> I'm not sure how to resample to get a regular grid...using interp or interpp
> would not be wise because of the size of the grid...
A quick bodge would be to ignore the slight change in lat
Hello Josh, and list,
Figuring out how to link R with GIS may be extremely useful to you, not just
for calculating slope and aspect, but also for other analyses in the future.
There are also reasons you might not want to; I am one of those people who
likes to write his own code. Consequently I
I tried to polygon.you are right...too slow
I'm not sure how to resample to get a regular grid...using interp or interpp
would not be wise because of the size of the grid...
On Mon, Jul 13, 2009 at 11:09 AM, Barry Rowlingson <
b.rowling...@lancaster.ac.uk> wrote:
> On Mon, Jul 13, 2009 at
On Mon, Jul 13, 2009 at 3:26 PM, Matt Oliver wrote:
> Dear r-sig-geo,
>
> I am trying to generate a kml for an image I am producing using image().
> After reading about kml generation, I'm unsure if I sould be using
> kmlOverlay() or writeOGR, or some other function.
>
> This is the data
>
> http:/
Dear r-sig-geo,
I am trying to generate a kml for an image I am producing using image().
After reading about kml generation, I'm unsure if I sould be using
kmlOverlay() or writeOGR, or some other function.
This is the data
http://www.ceoe.udel.edu/cms/moliver/20071003.276.0237.n17.nc
require(nc
Roger,
First at all, I think that the problem is solved.
Note that I was setting the CRS in QGIS, thus it is unequivocally
specified as EPSG 23031, then read into R through readOGR()
Anyway, the problem is that I was setting the towgs84 field as:
proj4string(wpcast300SPDF) <- CRS(paste(" +proj=u
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