时间学列分析导论中 关于MA的讨论。书中第34页,第5版。
denoted by Bj Xt= Xt-j for all j
Then equation (3.2) may be written as Xt = β0+ β1B+...+βqBq = θ(B)Zt
where θ(B) is polynomial of order q in B.
the equition 3.2 is Xt = β0Zt+ β1Zt-1+...+βqZt-q
苦思不得其解,故请教来往高人,先行谢过。
[此贴子已经被作者于2008-1-8 9:45:16编辑过]



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