HOW TO

Creating cross validation graphs show a good fit, but the root-mean-square-standardized error is not close to 1. When many data points are plotted on a graph, the graph may become crowded and interpretations become difficult.

Instructions provided are to create a graph in other spreadsheet packages, such as MS Excel, using the cross validation output created by Geostatistical Analyst.

- In Geostatistical Analyst, click Save Cross Validation...

The output will be saved as a .dbf table. - Plot 'measured' versus 'predicted' values on a graph.
- Verify that the root mean square standardized error is calculated correctly. Do this by using the following formula:

More information about cross validation is also available in "Using Geostatistical Analyst".

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