You're right, Tableau defines a view granularity
(and the number of Marks to draw on canvas)
from all unique value combinations
of all Dimension pills on a view.
[Valueq (bin)] is a Dimension, too (though a special one).
So if one place both [ID] and [Valueq (bin)] on a view (Sheet 7)
and filter [Year] = 2013, the number of Marks on a view would be 350 --
each Mark is a combination of unique values of [ID] and [Valueq (bin)].
The aggregation COUNTD([ID]) is calculated for each Mark.
So your 164 unique IDs are counted in one or more Marks --
same ID, different Valueq (bin). When other dimensions on a view --
Marks are drawn different, so distinct IDs are counted different.
I couldn't find a problem here.
What exactly is your concern?
PS Workbook w/Sheet 7 attached.
problemforForums_YF.twbx 46.6 KB