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You don't understand the problem.

The problem isn't how to figure out 1/12th the items to review.

The problem is how to decide which contracts to review in a given month such that 1/12 the total items
are reviewed.

Example: A location has 12,000 items on contract.

During one month, we might review a single contract with 1,200 items on it. Another month, we'd
review 100 contracts each with 100 items.

Brute force trial and error would let me determine which contracts should be reviewed in which month.
But is there a better way?

Charles Wilt
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307

wiltc@xxxxxxxxxx


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Asher613Smith
Sent: Tuesday, February 12, 2008 3:21 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: Assigning a review month, algorithm question

How about dividing the total number of records by 12 and multiplying by
month number-1,

Start = Int( records /12 ) * (Month - 1) + 1 // month one starts at
record 1

Then position to RRN Start, (using arrival sequence, not keyed sequence)

Then

RecordsToRead = Int( records /12 )
Do RecordsToRead
Read FileFormat
...
EndDo

That way, you read 1/12 of the records in the file each time. In January
you read the oldest records, in December you read the newest records.
Alternatively, you could start at record Month, and reposition 12 records
ahead each time before you do the next read, again using arrival sequence

In a message dated 02/12/08 22:06:36 Jerusalem Standard Time,
WiltC@xxxxxxxxxx writes:
Ok put your thinking caps on!



I've got a file with the following keys...

Location

Contract #

Item Number



What I need to do is assign a review month to each contract in such a
manner that approximately 1/12
the locations totals items are reviewed each month.



I've thought of a brute-force type method.

1) Get totals grouped by location, contract

2) Figure 1/12 the location's total items

3) Add contracts for a location to a given month till you get close to the
number in step 2



But I was curious if anybody had a more elegant method?



Note I'm dealing with 150,000 contacts containing 1.5 million items at 118
locations. Some locations
have 50,000+ plus, some < 100.



I've also looked at randomly assigning contracts to the review month.
That's pretty easy to do, and
it's not to bad but there are discrepancies in the # of items reviewed
each much since there's some
contracts could have 10 items and others 100s or 1000s.



Thanks!



Charles Wilt

Software Engineer

CINTAS Corporation - IT 92B

513.701.1307

wiltc@xxxxxxxxxx <mailto:wiltc@xxxxxxxxxx>




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