The Enable Filter option enables you to extract and display only the soundings that meet the conditions you set for the filter.

1. Select the Enable Filter check box.

2. Use a combination of attributes, operators and values to construct your filter.

3. Use the Backspace key to delete a character or Clear to remove the entire filter string

For example, to display only the soundings with a Depth less than 10 metres, and a hypothesis count of 2:

• Double-click on Depth in the list of available Attributes to place it in the filter field.

• Click the “<” button, and type 10.

• Click the and button and double-click on the Hypothesis_Count attribute.

• Click the “=” button, and type 2.

HIPS and SIPS automatically adds the necessary spaces between the parameters in the filter string. However, if you choose to type the filter parameters into the filter field, you must manually add those spaces.

4. Click Next.