Process Data

The Process Data option in the Analysis menu allows you to save a processed version of the current Dips file.

To save a processed Dips file:

1. Select Processed Data from the Analysis menu.
2. In the Processed Dips File dialog:
   1. Select the Orientation Format of the processed file.
   2. Multiply the Quantity column by Terzaghi Weighting in the processed file.
   3. Include SETID, Terzaghi Weighting, and/or Quantity column as Extra Columns in the processed file.
   4. Select OK.
3. You can then save the Dips file with a standard Save As dialog.

The processed file will have the following properties, according to your selections in the Processed Dips File dialog:

Orientation Format

The user can save the processed data in any one of the four Orientation Formats available in Dips (Trend / Plunge , Dip / DipDirection , Strike (Right) / Dip, Strike (Left) / Dip). This will determine the format of ALL data in the two Orientation Columns of the processed file.

Declination

The Declination in the processed file is ZERO. All of the data has been offset by the Declination (if it is set in Project Settings) recorded in the original file.

Traverses

There are no active Traverses in the processed file. If the original file contained Traverse information, this will be saved in the processed file in comment form only. The Traverse Column will automatically be saved as an Extra Column in the processed file.

To preserve bias correction information in the processed file:

• Select the Multiply Quantity Column by Terzaghi Weighting checkbox in the Processed Dips File dialog (see below for details).

You may also save the Terzaghi Weighting information in its own column, by selecting the Terzaghi Weighting checkbox. The Terzaghi Weighting column will simply be an Extra Column in the processed file.

Quantity Column

If Traverses were present in the original file, the bias correction information can be preserved:

• Select the Multiply Quantity Column by Terzaghi Weighting checkbox in the Processed Dips File dialog.

This will multiply the values in the Quantity Column by the weights of each pole, so that UNWEIGHTED Contour and Rosette plots for the processed file will actually reflect the WEIGHTED data concentrations. The Quantity Column title will be Quantity*W in this case.

This is the only way to preserve the bias correction information in the processed file.

NOTE: If a Quantity column was not present in the original file, it will automatically be created when you use this option.

If the Multiply Quantity Column by Terzaghi Weighting checkbox is selected, then you may preserve the original Quantity Column:

• Select the Original Quantity Column checkbox.

This will save the original Quantity Column as an Extra Column in the processed file.

If your Dips file contains a Quantity Column, then the Number of Poles can be greater than the Number of Entries. The number of entries is simply the number of rows in the Dips file. The number of poles accounts for the values in the Quantity Column (for example: if the Quantity = 2 for all rows, then the number of poles would be 2X the number of entries).

When you save a processed file, if the original file contained Traverses, the Traverse information is not saved in the processed file. If you select the Multiply Quantity Column by Terzaghi Weighting checkbox in the processed file dialog, this creates the Q*W column (Quantity x Terzaghi Weighting) in the processed file. The effect of this is, when you view a contour plot in the processed file, you will actually see the weighted contours, because Quantity is multiplied by Terzaghi Weighting. This is equivalent to viewing the weighted contours in the original file.

NOTE: The Terzaghi Weighting option is not available in the processed file, because this processed file does not contain any Traverse Information. The Q*W column allows you to effectively preserve the Terzaghi correction in the processed file, even though the Traverse information is not stored in the file.

Set Column

If Sets were defined in the original file, the Set Column can be saved in the processed file as an Extra Column, by selecting the Set ID checkbox. This preserves the Set ID information only. All other Set information (i.e., Window Limits, Mean Set Planes) is not saved in the processed file.

Extra Columns

All Extra Columns of the original file are automatically saved in the processed file, and will appear AFTER the optional Extra Columns described above.