I guess var1 is a variogramCloud. More complete code:
> var1=variogram(val~1,geoObject,cloud=T)
> var1[1,]
dist gamma dir.hor dir.ver id left right
1 63834.75 0.08506403 0 0 var1 2 1
> as.data.frame(var1)$left
NULL
str(var1) gives:
Classes ‘variogramCloud’ and 'data.frame': 9253 obs. of 6 variables:
$ np : num 1 2 65538 3 65539 ...
$ dist : num 63835 97833 158641 251475 312811 ...
$ gamma : num 0.085 2.222 1.438 7.132 5.659 ...
$ dir.hor: num 0 0 0 0 0 0 0 0 0 0 ...
$ dir.ver: num 0 0 0 0 0 0 0 0 0 0 ...
$ id : Factor w/ 1 level "var1": 1 1 1 1 1 1 1 1 1 1 ...
- attr(*, "direct")='data.frame': 1 obs. of 2 variables:
..$ id : Factor w/ 1 level "var1": 1
..$ is.direct: logi TRUE
- attr(*, ".BigInt")= num 65536
make sure var1 is a variogramCloud, obtained by
variogram(..., cloud=TRUE)
On 03/14/2011 06:27 PM, vetter wrote:
It is not working:
as.data.frame(var1)[1,]
np dist gamma dir.hor dir.ver id
1 1 63834.75 0.2057185 0 0 var1
and therefore:
as.data.frame(var1)$left
NULL
On 03/14/2011 05:47 PM, vetter wrote:
I computed a variogram cloud using the gstat package.
My results look like this:
var1[,1]
that was probably a
var[1,]
dist gamma dir.hor dir.ver id left right
1 63834.75 0.2057185 0 0 var1 2 1
My question is:
How can I extract the values from column "left" and "right" from this
object?
By coercion to a data.frame, and selecting:
as.data.frame(var1)$left
as.data.frame(var1)$right
Thanks Tobias Vetter
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