GAUSANAM Process

To access this process:

Enter "GAUSANAM" into the Command Line and press <ENTER>.
Display the Find Command screen, locate GAUSANAM and click Run.
Launched as part of the Uniform Conditioning Wizard.

See this process in the Command Table.

Process Overview

For mosaic-style modelling, all variograms are directly proportional, so indicator kriging will provide a correct solution. Diffusion-style models are a bigger challenge in that co-kriging is required as the model is discretely gaussian in nature. The important point is that the gaussian model will retain a gaussian distribution when the support change occurs (from points to blocks) as a result of Gaussian Anamorphosis.

The gaussian anamorphosis is a mathematical function which transforms a variable Y with a gaussian distribution in a new variable Z with any distribution. From a pragmatic viewpoint, this means transforming a non-Gaussian distribution into a Gaussian distribution (“anamorphosis” means “transformation”).

The Gaussian Anamorphosis Modelling functionality is designed to:

model the histogram of your raw dataset (Anamorphosis function),
transform a Raw Variable into a Gaussian Variable (normal score transformation) that will be used in the simulation processes, and;
calculate grade-tonnage curves

Input Files

Name	Description	I/O Status	Required	Type
SAMPLES	A Datamine file that contains sample positional information and supporting attributes.	Input	Yes	Undefined

Output Files

Name	I/O Status	Required	Type	Description
GRAPH	Output	No	Undefined	A file containing the data required to construct scatter plot and histogram graphs relating to a locally-conditioned SMU model.
STATS	Output	No	Undefined	A file containing summary statistical data (in Datamine binary format) relating to a locally-conditioned SMU model.

Fields

Name	Description	Source	Required	Type	Default
GRADE	The grade field (present in the samples file) that will be considered during anamorphosis.	IN	Yes	Alphanumeric	Undefined
WEIGHT	An optional weighting field.	IN	No	Alphanumeric	Undefined

Example

!GAUSANAM &SAMPLES(samples), &GRAPH(s_graph), &STATS(s_stats)

*GRADE(AU), *WEIGHT(DENSITY)