Auto-Run Residuals

This command automates running the Calculate Residuals command. For this command, you set up a list of strata names, values and modeling methods. Then all these methods can be run at the same time and the results displayed in a formatted report.


When the command is first executed, you will be prompted to select the drillholes, channel samples, and strata polylines that will be used for modeling. The above dialog will then appear.

Summary Report Only: Creates a simplified report rather than including the details on the residual that is calculated for each data point.
Use Report Formatter: Sends the report to the Report Formatter rather than using the predefined text format.
Calculate Histogram: Categorizes the residual values into histogram bins. The bins may be automatically set with the  Auto Bin Size and Number of Histogram Bins options, or you may set an absolute Bin Size

Edit: Edits an existing entry in the list.
Add: Adds a new entry to the list.
Remove: Removes an entry from the list.
Clear: Removes all entries from the list.
Add Row: Adds a blank row to the list
Sort: Sort the list in alphabetical order by Strata Name.
Move Up/Down: Moves the selected entry up/down in the list
On/Off: Changes the Processing status of the entry. When turned off, the entry will not be calculated.
Calc Residuals: Calculates the residuals for each entry in the list, creating the final report.
Column Options: Allows you to toggle the visibility of each column in the main dialog.


When a new entry is added to the list, the below dialog will appear.


The settings found in this dialog are very similar to those found in the Strata Grids Autorun command, and are not discussed in depth here. The Output Residual Grid File option will create a grid file from the residual values. This provides a visual means of inspecting the residual values rather than only viewing a text report. Note that when the residual grid is made, the Triangulation method will be used to connect the residual values. After picking the settings for the modeling method, you may click OK to add the entry to the list.

An example of the final report is shown below. Often, the most meaningful value is the Absolute Value Residual Average. A lower value indicates that the modeling method was able to very accurately predict the value in an unknown area, whereas a higher value indicates a less accurate modeling method. This is only one means of determining the applicability of the modeling method however. Some modeling methods may not be able to use all of the available data for calculating the residual value, which should be considered when picking a modeling method. The contours of the modeled surfaces should also be considered to ensure correct results. Every data set is different, and there is no universal "best" modeling method or settings that can be blindly applied to any data set.



Pulldown Menu Location: StrataCalc
Keyboard Command: autostat

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