file_dataset::init

Source: dataset/file/file_dataset__init.pro

 file_dataset::init
        Constructor for a file pseudodataset.

 Usage:
        fileref = obj_new("file_dataset", top[, filename])

 Arguments:
        top     objref  The object reference of the top-level HS
                        container 
        filename string The name of the file to examine.

 Keywords:
        group   long    The widget ID of a group leader.
        inherit objref  Another dataset whose global properties are to
                        be copied to this one. (Only the time range
                        and the archive type for LAN rates data are
                        actually relevant).
        

 Notes:
        Because of the potentially very large number of directories
        that would otherwise need to be searched, if a filename is
        given, it must be a full pathname (a plain filename will be
        searched in the current directory).

 History:
        Original: 15/8/00; SJT