positions,
positionsNumeric, and
positionsCalendar classes
are virtual classes that represent positions for
series objects.
The
timeInterval class represents time intervals.
The
positionsNumeric class extends
positions, and it is extended by
numeric
and
numericSequence. The
positionsCalendar class extends
positions
, and it is extended by
timeDate and
timeSequence.
The timeInterval class is extended by
timeSpan and
timeRelative.