sindexf | R Documentation |
Returns vector containing the seasonal index for h
future periods. If
the seasonal index is non-periodic, it uses the last values of the index.
sindexf(object, h)
object |
Output from |
h |
Number of periods ahead to forecast |
Time series
Rob J Hyndman
uk.stl <- stl(UKDriverDeaths,"periodic")
uk.sa <- seasadj(uk.stl)
uk.fcast <- holt(uk.sa,36)
seasf <- sindexf(uk.stl,36)
uk.fcast$mean <- uk.fcast$mean + seasf
uk.fcast$lower <- uk.fcast$lower + cbind(seasf,seasf)
uk.fcast$upper <- uk.fcast$upper + cbind(seasf,seasf)
uk.fcast$x <- UKDriverDeaths
plot(uk.fcast,main="Forecasts from Holt's method with seasonal adjustment")
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