Average computed incorrectly ?

Question

Hello ,
please help me with the following problem.
while using OBIEE 11g (11.1.1.5.0) I came into a situation when average is not computed correctly.
essentially it happens when creating a simple analysis having a single view that has one or more EXCLUDED columns (not using all attributes from the analysis)
in that case it seems that OBIEE :
1. computes first an average per ALL attributes of that analysis (even those not included in the view)
2. the results produced at step 1 are further aggregated to deliver results for the view. so an average of average is computed, producing wrong results (from the analysis view point of view).
I've created a simple test case, using 2 tables TEST_DIM_1 (as a dimension table ) and TEST_FACT (as fact ). the BM is almost a copy of physical layer; MEASURE1_AVG is defined on MEASURE1 column, having AVG as aggregation rule.
the analyses is using ATTRIBUTE_1_1, ATTRIBUTE_1_2, MEASURE1_AVG . in the view , ATTRIBUTE_1_2 attribute is EXCLUDED from the view.
as a result, the MEASURE1_AVG is computed incorrectly.
needless to say, if ATTRIBUTE_1_2 is completely removed from analysis (not only excluded from the view), the average is correct.
incorrect result in the analysis :
ATTRIBUTE_1_1          MEASURE1_AVG
AMER                     600.00           
EU                1003.33      
correct avg per ATTRIBUTE_1_1 :
ATTRIBUTE_1_1          (CORRECT AVG PER ATTRIBUTE_1_1)
AMER                (600.00)      
EU           (671.67)
table definitions and values below :
create table TEST_DIM_1
ID NUMBER(20) not null,
ATTRIBUTE_1_1 VARCHAR2(10),
ATTRIBUTE_1_2 VARCHAR2(10)
alter table TEST_DIM_1
add constraint TEST_DIM_1_PK primary key (ID);
create table TEST_FACT
ID NUMBER(20) not null,
MEASURE1 NUMBER,
MEASURE2 NUMBER,
TEST_DIM_ID NUMBER(20),
F_ATTRIBUTE VARCHAR2(100)
alter table TEST_FACT
add constraint TEST_FACT_PK primary key (ID);
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (1, 'EU', 'RO');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (2, 'EU', 'BG');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (3, 'EU', 'DE');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (11, 'AMER', 'US');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (12, 'AMER', 'MX');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (4, 'EU', 'RO');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (5, 'EU', 'RO');
insert into TEST_DIM_1 (ID, ATTRIBUTE_1_1, ATTRIBUTE_1_2)
values (6, 'EU', 'DE');
commit;
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (1, 10, 10, 1, 'SMALL');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (2, 10, 10, 4, 'SMALL');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (3, 10, 10, 5, 'SMALL');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (4, 2000, 2000, 2, 'BIG');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (5, 1000, 1000, 3, 'BIG');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (6, 1000, 1000, 6, 'BIG');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (11, 500, 500, 11, 'MM');
insert into TEST_FACT (ID, MEASURE1, MEASURE2, TEST_DIM_ID, F_ATTRIBUTE)
values (12, 700, 700, 12, 'MM');
commit;
alter table TEST_FACT
add constraint TEST_FACT_DIM1_FK foreign key (TEST_DIM_ID)
references TEST_DIM_1 (ID);

Answer 1

Here's my solution:
I had to set the binding for the dropdowns to numbers. I didn't know what numbers you were using, so I picked "0" for what "N/A" would get, but you can pick whatever. For the form, I made one dropdown and then copy/pasted it however many times I wanted. (In this case 8 to match your example.) I put the code in the calculate event for the text field I was using to report the average.
var n = 0;
var total = 0;
for (var i=0; i<8; i++){
          if (!xfa.resolveNode("dd1["+i+"]").isNull && xfa.resolveNode("dd1["+i+"]").rawValue != 0){
                    n++;
                    total += Number(xfa.resolveNode("dd1["+i+"]").rawValue);
this.rawValue = total/n;