Re: [Sgems-devel] I am getting a constant kriging variance at different prediction locations

[nico r. <nic...@gm...>]

Hi,

Could you please send me the data set and the parameter file you're using,
so I can reproduce the bug?
Thank you

On 1/4/07, Sanjay Lamsal <sl...@uf...> wrote:
>
> Hi
>
> Initially I performed Ordinary kriging in regular grids. Although the
> predicted values varied across the study area, the prediction variance at
> all prediction locations was the same.
>
> I re-tested it in a subset of the prediction grids, and the prediction
> variance was same at all the locations.
>
> I again tried kriging on grid location selected at differing spatial
> proximity to the sampling points, and sampling configuration, I still get
> kriging variance the same at all sampling locations. Even at prediction
> points close to true locations, the prediction variances was same to the
> locations distant apart.
>
> Any idea on why I get the same prediction error variance at all locations
> -
> whether I use regularly spaced prediction grids or irregularly spaced
> prediction grids.
>
> Thanks
>
> Sanjay
>
>
>
>
>
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