Source: dataset/rate/rate_dataset__check_type_unit.pro
rate_dataset::check_type_unit Check whether all the streams of a dataset are of compatible types. Usage: iteq = dsref -> check_type_unit() Keyword: visible_only If set, then only check the visible streams. History: Original: 5/7/00; SJT Add mag check & rationalize: 10/7/00; SJT Add visible keyword: 11/4/01; SJT