为什么2006-2011月度数据做不了X12季节调整？？？

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用EVIEWS做出错了：
NOTE: X-12-ARIMA will not compute the ACF of the squared residuals for
a set of residuals that is less than ten years long.
ERROR: Multiplicative or log additive seasonal adjustment cannot be
performed when preadjustment factors are derived from a regARIMA
model for data which have not been log transformed.
Check the values for the power or function arguments of the
transform spec and mode of the x11 spec.

这是什么意思啊？

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关键词：月度数据 季节调整 X12 transformed adjustment function seasonal derived factors cannot

你的数据年份太少了