lan_spect_stream::subtract_background

Source: stream/spect/Lan/lan_spect_stream__subtract_background.pro

 spect_stream::subtract_background
        Subtract background from the current stream.

 Usage:
        strref -> subtract_background

 History:
        Original: 20/3/00; SJT
        Moved to LAN: 28/3/00; SJT