Can a *REC be too long?

Question

Hi,
I am working in a YTD model where I have two accounts. On account 1 the users enter data, for some categories month by month for others all 12 months of a year at once.
The requirement is to calculate the cumulative of the YTD values divided by the monthnumer and store it on a second account.
For example:
ACCOUNT1 (input)
YYYY.01     1
YYYY.02     2
YYYY.03     3
YYYY.04     4
ACCOUNT2 (to be calculated by a script)
YYYY.01     1 / 1
YYYY.02     (1 + 2) / 2 = 1.5
YYYY.03     (1 + 2 + 3) / 3 = 2
YYYY.04     (1 + 2 + 3 + 4) / 4 = 2.5
I have come up with this script
*SELECT(%DIM_SRC%,[ID],"DIM1","[ACTIVE]='Y' ")
*CALCULATE_DIFFERENCE = 0
*XDIM_MEMBERSET ACCOUNT=ACCOUNT1
*XDIM_MEMBERSET DIM1=%DIM_SRC%
*XDIM_MEMBERSET TIME=%TIME_SET%
*WHEN TIME.MONTHNUM
*IS 1
*REC(EXPRESSION=%VALUE%,ACCOUNT=ACCOUNT2)
*IS 2
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1)))/2,ACCOUNT=ACCOUNT2)
*IS 3
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2)))/3,ACCOUNT=ACCOUNT2)
*IS 4
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3)))/4,ACCOUNT=ACCOUNT2)
*IS 5
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4)))/5,ACCOUNT=ACCOUNT2)
*IS 6
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5)))/6,ACCOUNT=ACCOUNT2)
*IS 7
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6)))/7,ACCOUNT=ACCOUNT2)
*IS 8
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6))+GET(TIME=PRIOR(7)))/8,ACCOUNT=ACCOUNT2)
*IS 9
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6))+GET(TIME=PRIOR(7))+GET(TIME=PRIOR(8)))/9,ACCOUNT=ACCOUNT2)
*IS 10
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6))+GET(TIME=PRIOR(7))+GET(TIME=PRIOR(8))+GET(TIME=PRIOR(9)))/10,ACCOUNT=ACCOUNT2)
*IS 11
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6))+GET(TIME=PRIOR(7))+GET(TIME=PRIOR(8))+GET(TIME=PRIOR(9))+GET(TIME=PRIOR(10)))/11,ACCOUNT=ACCOUNT2)
*IS 12
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(1))+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6))+GET(TIME=PRIOR(7))+GET(TIME=PRIOR(8))+GET(TIME=PRIOR(9))+GET(TIME=PRIOR(10))+GET(TIME=PRIOR(11)))/12,ACCOUNT=ACCOUNT2)
*ENDWHEN
This works fine for months 1 to 11 but in month 12 I get a zero on ACCOUNT2. If I replace the *REC for month 12 with this one
*REC(EXPRESSION=(%VALUE%+GET(TIME=PRIOR(2))+GET(TIME=PRIOR(3))+GET(TIME=PRIOR(4))+GET(TIME=PRIOR(5))+GET(TIME=PRIOR(6))+GET(TIME=PRIOR(7))+GET(TIME=PRIOR(8))+GET(TIME=PRIOR(9))+GET(TIME=PRIOR(10))+GET(TIME=PRIOR(11)))/12,ACCOUNT=ACCOUNT2)
I have taken out on of the +GET() parts (it doesn't actually matter which one, taking out the PRRIO(1) is just an example) the script will calculate the correct value based on the +GET() still in the script.
So to me it seems the *REC is too long. Am I correct with that assumption or have I made some other mistake?
Thanks,
Arnold

Answer 1

Hi Arnold,
I would suggest you to do the following:
1. Scope your script logic to YTD measure
2. Just divide the YTD value by the monthnum of the period.
Hope this helps.