====== Variogram Editor ======

In the main dialog of the variogram editor, a variogram based on input data is shown with a fitted model . The experimental variogram is illustrated as black dots while the variogram model is illustrated as a red curve.

__Edit: __ A variogram model is autofitted input data.

__>>: __ \\
The structure dialog opens, where the autofitted parameters are available, see Structure below.

Note: this documentation describes the user interface and parameters. However, full documentation of variogram analysis and model construction is a complex subject and is beyond the scope of this text.

Note: The dialog is used for both 2D and 3D interpolation. When working in 2D all parameters that are used only for 3D are disabled.

**Structures ** \\
The Variogram Structure is used to edit the parameters for individual variogram model structures.

__Nugget:__ Nugget effect (has no effect on the Power structure).\\
TIP: When Nugget = 0 the fitting is disabled.\\
__Contribution:__ Contribution or scale of the structure.\\
__Structure Type:__ Available structures are: Spherical, Exponential, Gaussian, Power, and Cosine Hole.

Tip: The Spherical and exponential structures are the most common structures to use.

__Angle 1____:__ Clockwise rotation angle of Y-axis from north.\\
__Angle 2____:__ Vertical rotation angle of (rotated) Y-axis from horizontal. Used in 3D only.\\
__Angle 3____:__ Rotation around (rotated) Y-axis (plunge). Used in 3D only.\\
__AHMax:__ Horizontal range in primary direction of anisotropy (rotated Y-axis).\\
__AHMin:__ Horizontal range in secondary direction of anisotropy (rotated X-axis).\\
__AHVert:__ Vertical range in direction of lowest anisotropy (rotated Z-axis). Used in 3D only.

__Add:__ Adds a new default structure to the variogram model.\\
__Delete:__ Deletes the selected structure\\
__Fit:__ Fits structure type to data

__<<: __ The structures dialog closes

__Advanced:__ Opens the advanced variogram settings dialog, [[:geoscene3d:application:interpolation:interpolation_wizard:advanced_variogram_settings|]]\\
__Simulation:__ Opens a Variogram simulation window enabling visualization of a variogram realization\\
__Simulation:__ Opens a simulation window enabling visualization of a variogram realization