X11或者X12都可以：

Seasonally adjust series using the Census X11.2 method.

Syntax

Series Proc: series_name.x11(options) adj_name [fac_name]

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EViews provides a convenient front-end for accessing the U.S. Census Bureau's X12 seasonal adjustment program from within EViews. The X12 seasonal adjustment program X12A.EXE is publicly provided by the Census and is installed in your EViews directory.