dshelper_sector::check_equal_sectors

Source: dataset/helpers/sector/dshelper_sector__check_equal_sectors.pro

 dshelper_sector::check_equal_sectors
        Check whether all the streams of a dataset have the same
        number of sectors.

 Usage:
        iseq = dsref -> check_equal_sectors()

 Keyword:
        visible_only    If set, then only check the visible streams.
        selected        If set, then return true if only averages are
                        chosen (irrespective of what's possible).

 History:
        Original: 28/6/00; SJT
        Made into function: 5/7/00; SJT
        Return 1 if averages requested everywhere: 11/8/00; SJT
        Add visible keyword: 11/4/01; SJT
        Delete some broken shortcuts: 4/10/01; SJT
        Add selected keyword: 12/10/01; SJT
        Mods to allow sector ratios to work right (ignore "locally
        sectored" streams): 29/4/02; SJT