4.0 Web Intelligence - Formula for Average Values

Hello,

I have a Web report with three dimensions and one measure.

There can be multiple values of Dim2 under one value of Dim1, and multiple values of Dim3 under Dim2.  I am able to get the correct average of Dim2 in the following formula.

Dim2Average =Average([Measure]) In (Dim2])

However, the following formula does not give me the expected results.

Dim1Average =Average([Measure]) In ([Dim1])

There are breaks in place on Dim1 and Dim2.    

See Table Below:

Dim1                    Dim2                   Dim3         Measure

dim1                     dim2_a                 dim3_aa       2

"                           "                          dim3_ab       2

"                           "                          dim3_ac       2

"                           dim2_a Average                       2

"                           dim2_b                 dim_ba        3

"                           "                          dim_bb        3

"                          dim2_b Average                       3                

Dim1Average                                                       2.43

Dim1Average is taking (2+2+2+2+3+3+3)/7 = 2.43

I need Dim1Average to be the average of 'dim2_a Average' and 'dim2_b Average', (3+2)/2, which would be 2.5

Is this possible using other logic in the formula?

Thanks.