QlikView - Struggling to produce Bubble / scatter from record-data - qlikview

Question

I would like to make a Bubble-scatter where the data looks like:
Each row is an 'event', with a Day of the event and the event's grade
Day | Grade
------------
1 | A
1 | A
1 | B
1 | (empty)
1 | B
2 | A
I want this to turn into a bubble graph that looks like :
Day along the X-axis ( 1, 2)
On Y-axis I would like to see A,B (vertically)
And I would expect
one big bubble for day-1 A
one big bubble for day-2 A
one little bubble for day-2 A
Given the data above
It is either refusing to display anything at all saying 'undefined values'
I'm really struggling to understand how this bubble/scatter works, and the documentation isn't helping
It asks for Dimension, Measure, Measure and I am putting in many variations of Day, Count(Grade) and Avg(Grade)

Answer 1

Bubble charts are a bit tricky.
In your case you need 2 dimensions: dimension 1 (Grade) and dimension 2 (Day).
Expression is as simple as sum(1) (take into account that you are already double-filtering the data because you have 2 dimensions). To avoid extra bubbles due to the Null entries, just select "ignore null values" in the dimension panel options.