> HARRV<-harModel(data=rv,periods=c(1,5,22),RVest=c("rCov"),type="HARRV",h=1)

Error in try.xts(x, error = "must be either xts-coercible or timeBased") :
  must be either xts-coercible or timeBased

请问这个语句是哪里出问题了