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: