Hallo!
Wenn ich ein Punkteshape interpolieren möchte kommt folgende Fehlermeldung: "An error was encountered while executing Kriging.
("esriGeoAnalyst.GridEngine") Unable to estimate the semi-variogram.
Failed to execute (Kriging_7)".
Weiß jemand, woran das liegen könnte?
Wenn ich ein Punkteshape interpolieren möchte kommt folgende Fehlermeldung: "An error was encountered while executing Kriging.
("esriGeoAnalyst.GridEngine") Unable to estimate the semi-variogram.
Failed to execute (Kriging_7)".
Weiß jemand, woran das liegen könnte?
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Gespeichert von Maxilla am Di., 27.10.2009 - 16:34
Permalink010079: Unable to estimate semivariogram.
Description:
The variance is calculated based upon the average variance of all point pairs within each interval of the cell size. The variogram is then fit to the variance points using the Levenberg-Marquardt Method (Press et al., 1986) of non-linear least squares approximation. A minimum of three points (a variance value at three distances) are required for the fit.
The message:
Unable to estimate semivariogram
indicates that there were not sufficient points to calculate a variance at the minimum of three distances.
Solution:
By increasing the cellsize, you will increase the number of sample points per cellsize interval, thereby providing enough data points to estimate the semivariogram. Once the semivariogram is estimated, a smaller cellsize can be used in creating the actual output raster.
Aus: Geoprocessing tool errors and warnings