Roger,
That did it! The sessionInfo() command identified that I had older
versions than what were available on CRAN, namely:
lattice -- 0.13-8
gstat -- 0.9-29 (was older: 0.9-17)
sp -- 0.8-14 (was older: 0.8-8)
On my Mac, I have:
lattice -- 0.11-8
gstat -- 0.9-21
sp -- 0.7-10
which works…
BT
Thomas:
Please do:
sessionInfo()
on both machines, and see if any of the package versions are different.
It often also helps to name function arguments explicitly, to be sure that
they are being understood correctly inside the functions. Depending on the
class of the data= arugment, as far as
Roger,
This is what the summary() command gives me before/after I use
fullgrid(dem) <- FALSE
dem<-readFLOAT6sp("ohrfc.dem")
> summary(dem)
Object of class SpatialGridDataFrame
Coordinates:
min max
coords.x1 -351000 675000
coords.x2 -486000 486000
Is projected: TRUE
proj4string : [+proj=lcc +la
On Fri, 28 Apr 2006, Thomas Adams wrote:
> Roger,
>
> Your suggestion:
>
> fullgrid(dem) <- FALSE
>
> did turn dem into class type SpatialGridDataFrame, but when I tried:
>
> z <- predict(UK_fit,newdata=dem)
>
> I got an error:
>
> Error in model.frame(... :
> invalid variable type.
>
> I t
Roger,
Your suggestion:
fullgrid(dem) <- FALSE
did turn dem into class type SpatialGridDataFrame, but when I tried:
z <- predict(UK_fit,newdata=dem)
I got an error:
Error in model.frame(... :
invalid variable type.
I think I should restate the problem:
I have a file 'temps' which has class
On Fri, 28 Apr 2006, Thomas Adams wrote:
> Roger,
>
> This got me further along, but I am encountering a problem with:
>
> z <- predict(UK_fit, newdata=BMcD_SPx)
>
> The gstat step works for me, where I have:
>
> UK_fit<-gstat(formula=temps$temp~dem,data=temps,model=efitted)
>
> temps has cla
Roger,
This got me further along, but I am encountering a problem with:
z <- predict(UK_fit, newdata=BMcD_SPx)
The gstat step works for me, where I have:
UK_fit<-gstat(formula=temps$temp~dem,data=temps,model=efitted)
temps has class SpatialPointsDataFrame:
coordinates cat x
age -
From: Roger Bivand <[EMAIL PROTECTED]>
Date: Thursday, April 27, 2006 4:21 pm
Subject: Re: [R-sig-Geo] Example of universal kriging with R/gstat in GRASS
needed
> On Thu, 27 Apr 2006, Thomas Adams wrote:
>
> > List:
> >
> > I can not seem to work out the
On Thu, 27 Apr 2006, Thomas Adams wrote:
> List:
>
> I can not seem to work out the syntax for using R/gstat within a GRASS
> 6.1 session to do universal kriging. I have a DEM (elevation data on a
> grid) and point data for temperature; theoretically, the temperatures
> should relate to elevat
List:
I can not seem to work out the syntax for using R/gstat within a GRASS
6.1 session to do universal kriging. I have a DEM (elevation data on a
grid) and point data for temperature; theoretically, the temperatures
should relate to elevation. So, I am trying to spatially interpolate the
tem
10 matches
Mail list logo
