This is mainly used within oce to create sub-classes, although
users can use
new("oce") to create a blank
object, if desired.
A list containing information about the data. The
contents vary across sub-classes, e.g. an adp
object has information about beam patterns, which obviously would
not make sense for a ctd object In addition,
all classes have items named
to store information on the units of the data, and the data quality.
A list containing the data.
A list containing time-stamped processing steps, typically stored in the object by oce functions.