spect_stream::get_extrema

Source: stream/spect/spect_stream__get_extrema.pro

 spect_stream::get_extrema
        Return the extreme values of the processed rates of a spect
        stream. 
        
 Usage:
        range = strref -> get_extrema([time,][keys])

 Argument:
        time    double  The time at which the values are needed, (only
                        applicable to energy ranges for a ULEIS stream)
 Keywords:
        zero    If set, then return zeros rather than NaNs when no
                data are present.
        sector  If set, then return extrema for the sectors
                separately.
        energy  If set, then return the energy extrema of the stream.

 History:
        Original (after rates): 17/23/00; SJT
        Fix erange for ULEIS: 31/5/00; SJT