Geopsy: Subtract Signals

Subtract Signals, reached from the Waveform menu, subtract a signal or a group of signals from the signals in the active signal viewer. By clicking on Subtract Signals, a pop-up window appears with the following option:

• Subtract "All signals in group". It allows to subtract from the signal in the active viewer a whole group selected in the box below listing the current groups. Clicking on the '+' sign expands the list of existing groups. Groups with a different number of signals compared to the active viewer are displayed in grey and cannot be selected. Signals in the active viewer are subtracted one by one with the signals in the group in its defined order (see Groups).
• Subtract "A single signal". It allows to specify a signal in the combo box listing the signals in the active viewer only.

"Subtract Signals" modifies the temporary signals in the active viewer.