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lang-r
fun2 <- function(x) { v=as.vector(x) z=na.spline(v) s1.ts2 = ts(v, start=c(2013,14), end=c(2016,19), frequency=44) x=sgolayfilt(s1.ts2) } s1<-calc(rasterstack, fun2)But when I call s1, the follow error appears: Error in .calcTest(x[1:5], fun, na.rm, forcefun, forceapply) : cannot use this function What dou think it is happening? Thank again!