Syntax: X12 Procedure
The X12 procedure uses the following statements:
-
PROC X12
options ;
-
VAR
variables
;
-
BY
variables
;
-
ID
variables
;
-
EVENT
variables
;
-
USERDEFINED
variables
;
-
TRANSFORM
options
;
-
ADJUST
options
;
-
IDENTIFY
options
;
-
AUTOMDL
options
;
-
OUTLIER
options
;
-
REGRESSION
options
;
-
INPUT
variables
;
-
ARIMA
options
;
-
ESTIMATE
options
;
-
X11
options
;
-
FORECAST
options
;
-
CHECK
options
;
-
OUTPUT
options
;
-
TABLES
options
;
The PROC X12 statements perform basically the same function as the Census Bureau’s X-12-ARIMA specs. Specs (specifications) are used in X-12-ARIMA to control the computations and output. The PROC X12 statement performs some of the same functions as the Series spec in the Census Bureau’s X-12-ARIMA software. The ADJUST statement performs some of the same functions as the Transform spec. The TRANSFORM, IDENTIFY, AUTOMDL, OUTLIER, REGRESSION, ARIMA, ESTIMATE, X11, FORECAST, and CHECK statements are designed to perform the same functions as the corresponding X-12-ARIMA specs, although full compatibility is not yet available. The Census Bureau documentation X-12-ARIMA Reference Manual (U.S. Bureau of the Census; 2001b) can provide added insight to the functionality of these statements.
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