Dear Friends,
Coordinate is common in geology/spatial science. There are
latitude/longitude coordinate, x/y coordinate,. It maybe easy for
all of you, but difficult for persons without the background knowledge of
geology, so they can't do the correct analysis with different coordinate,.
Dear firends,
I have two questions about spatial statistics:
1. As we all know ,we can calculate Moran's I to evaluate the spatial
autocorrelation and we can also visually assess the spatial autocorrelation
through the Variogram in Geostatistics, Now my curiosity is what is the
difference betwee
I am a meteorologist in Hungary and a beginner of using R. I would need a
function in R that can interpolate data from irregular places
(meteorological stations) to regular places (gridpoints). If you know this
kind of function, write me the name of the function and its library.
My question is re
Hello,
I have got a list of lines given by a line number, the x and y coordinates of
the start-point and
of the end-point, like this:
LineNumberX1 Y1 X2 Y2
1 64 169108162
2 108162141179
3 108162119133
4
Hi Gabriella,
there are a bewildering array of functions that do spatial interpolation,
located in several packages.
If you have a good statistical knowledge you may wish to use geostatistical
functions (variograms followed by kriging). I wouldn't recommend
geostatistics without knowledge of it
Hi.
Fields package has Tps function which can execute Thin
Plate Spline(ESRI ArcGIS's Spatial Analyst extension can
do this method.) and Krig function for krigging.
In GIS, for interpolation, TIN is popular. R has Tripack,
however no interpolation functions.
Csima Gabriella wrote:
>Dear Everyone!
>I am a meteorologist in Hungary and a beginner of using R. I would need a
>function in R that can interpolate data from irregular places
>(meteorological stations) to regular places (gridpoints). If you know this
>kind of function, write me the name of the f
Csima Gabriella wrote:
> Dear Everyone!
> I am a meteorologist in Hungary and a beginner of using R. I would need a
> function in R that can interpolate data from irregular places
> (meteorological stations) to regular places (gridpoints). If you know this
> kind of function, write me the name of t
Dear Everyone!
I am a meteorologist in Hungary and a beginner of using R. I would need a
function in R that can interpolate data from irregular places
(meteorological stations) to regular places (gridpoints). If you know this
kind of function, write me the name of the function and its library.
Than
On Mon, 3 Apr 2006, Larry Layne wrote:
> --On Monday, April 03, 2006 Roger Bivand wrote:
>
> > OK. I can replicate this - there is still a bug in handling intercept-only
> > models in lagsarlm() with method="SparseM"; it was partly fixed in January
> > 2005. The equivalent model for errorsarlm()
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