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SAS Note: 002382 ***ALERT NOTE*** Product: ETS
Title:
MODEL REFIT fails for Forecast Combination models
Keywords:
INCORROUT INCORRSTAT COMBINE FORECAST REFIT EXISTING TIME SERIES SYSTEM
FORECASTING MENU FMS TSFS COMBINATION MODEL
The Refit Model action and the Refit Existing Model action in the Time
Series Forecasting System will not correctly refit a Forecast
Combination model of multiple underlying models if the underlying models
have been refit to modified data. As a consequence, forecasts and
statistics of fit for the forecast combination model will be incorrect.
To circumvent the problem, use the Edit Model action for the combination
model instead of the Refit Model action. This will bring up the
Forecast Combination Model Specification dialogue. In this dialogue,
verify that the Forecast Combination is correct and click OK. The
Forecast Combination model will now be refit correctly to the underlying
models which had been refit to modified data.
Reported Releases:
+------------REPORTED------------+ +------FIXED-----+
System Version Level Version Level
AIX/R 7 P1
AIX/R 8 1M0
AIX/R 8 M0
DigitUnx 7 P1
DigitUnx 8 1M0
DigitUnx 8 M0
HP800 7 P1
HP800 8 1M0
HP800 8 M0
IABI 8 1M0
IABI 8 M0
MIPS ABI 8 1M0
MIPS ABI 8 M0
OS/2 7 P1
OS/2 8 1M0
OS/2 8 M0
Solaris 7 P1
Solaris 8 1M0
Solaris 8 M0
VMS 8 M0
VMS/AXP 7 P1
VMS/AXP 8 1M0
VMS/AXP 8 M0
WIN/NT 7 P1
WIN/NT 8 1M0
WIN/NT 8 M0
Win2000 8 1M0
Win2000 8 M0
Win95 7 P1
Win95 8 1M0
Win95 8 M0
Win98 7 P1
Win98 8 1M0
Win98 8 M0
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