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Control Statement Summary

The following table shows which control statements are required (Req) or Optional (Optl) for processing each of the Forecast Algorithms.

FORECAST

FORECAST Methods

Control Statements

Smooth

Line

Copy

ORD_TYPE

Optl

Optl

Optl

ELEMENT

Optl

Optl

Optl

QUALIFIER

Optl

Optl

Optl

STRUCT# (1 - 5)

Optl

Optl

Optl

START_PERIOD

Req

Req

Req

END_PERIOD

Req

Req

Req

NUMBER_TO_FORECAST

Req

Req

N/A

AVERAGE

Req

Req

Req

ALGORITHM

Req

Req

Req

MODIFIER

Req

Req

N/A

KEEP_STRUCTURE

Req

Req

N/A

ALPHA

Req

N/A

N/A

DELTA

Req

N/A

N/A

VERSION

Req

Req:

Req

Once information needed to generate the CCCMOD table is specified, the periods requested from the CCCTAB are used by the SMOOTH and LINE algorithms to project future periods. The first projected period is the period following the period specified for the END_PERIOD control statement. Subsequent periods follow. For example, if 001 is specified for the START_PERIOD, 004 is specified for the END_PERIOD, and 002 is specified for the NUMBER_TO_FORECAST control statement, the periods forecasted are periods 5 and 6.