時(shí)間序列分解結(jié)果(文件)
【正文】 t, data = sales)Residuals: Min 1Q Median 3Q Max Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept) 2e16 ***t ***Signif. codes: 0 ‘***’ ‘**’ ‘*’ ‘.’ ‘ ’ 1Residual standard error: on 46 degrees of freedomMultiple Rsquared: , Adjusted Rsquared: Fstatistic: on 1 and 46 DF, pvalue: 由此，長(zhǎng)期趨勢(shì)方程為：T=+，利用此方程即可求得每個(gè)季度的趨勢(shì)值。此函數(shù)的基本結(jié)構(gòu)： Additive:= Trend * Seasonal * Random sales1 ts(sales[,2],start = 1,frequency = 4) 季節(jié)變動(dòng)趨勢(shì)分解 m depose(sales1,type = multiplicative) plot(m) m$x Qtr1 Qtr2 Qtr3 Qtr42003 2004 2005 2006 2007
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