Time series: xts/zoo object at annual (yearly) frequency

Hi John,
Here's one way to do it:
vec <- c(2,4,5)
yrs <- seq(from=as.Date("1991-01-01"),by="1 year",length=length(vec))
a <-  xts(x=vec, order.by=yrs)

HTH,
Eric

Hi,

   I'd like to make a time series at an annual frequency.

a<-xts(x=c(2,4,5), order.by=c("1991","1992","1993"))
Error in xts(x = c(2, 4, 5), order.by = c("1991", "1992", "1993")) :
  order.by requires an appropriate time-based object
a<-xts(x=c(2,4,5), order.by=1991:1993)
Error in xts(x = c(2, 4, 5), order.by = 1991:1993) :
  order.by requires an appropriate time-based object

  How should I do it? I know that to do for quarterly or monthly time
series, we use as.yearqtr or as.yearmon. What about annual?

   Thanks,

John

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Time series: xts/zoo object at annual (yearly) frequency

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