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séries univariantes de tempo - metodologia de Box & Jenkins

séries univariantes de tempo - metodologia de Box & Jenkins

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100tencia <strong>de</strong> correlações diferentes <strong>de</strong> zero nas primeiras <strong>de</strong>fasagens sãoindicações dos valores das or<strong>de</strong>ns "p" e "q" e nas <strong>de</strong>fasagens sazonaisdas or<strong>de</strong>ns "P" e "Q".Por exemplo, para um processo (O,l,l)x(0,l,1) «, os coeficientes <strong>de</strong> autocorrelaçoesda série W X <strong>de</strong>vem ser diferentes <strong>de</strong> zero soincn<strong>de</strong>fasagens l, 11, 12, 13.

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