Cross Variogram

Command line

The Cross Variogram operation can be directly executed by typing the following expression on the command line of the Main window:

  

OUTTABLE

=

TableCrossVariogram(InputPointMap, ColumnA, ColumnB, LagSpacing)

OUTTABLE

=

TableCrossVariogram(InputPointMap, ColumnA, ColumnB, LagSpacing, plane | sphere)

where:

OUTTABLE

is the name of your output Cross Variogram table.

TableCrossVariogram

is the command to start the Cross Variogram operation.

InputPointMap

is the name of your input point map with ID domain. The point map should be linked to an attribute table which contains at least 2 columns with a value domain.

ColumnA

is an attribute column with a value domain that contains the first variable.

ColumnB

is an attribute column with a value domain that contains the second variable.

For many points, there should be measured values both for Column A and Column B. The variables should be highly correlated (positive or negative).

LagSpacing

is a parameter to specify the length in meters of the linear distance intervals that should be used (real value > 0).

plane | sphere

optional parameter to calculate distances in a plane (plane), or on the sphere by using the projection of the coordinate system of the input point map (sphere). If not specified, distances will be calculated in a plane.

When the definition symbol = is used, a dependent output table is created: when the assignment symbol := is used the dependency link is immediately broken after the output table has been calculated.

See also: