R/as.year.R

require("zoo")
as.year <- function(zoo) {
  # convert to posixct
  t <- as.POSIXct(time(zoo))
  days <- as.numeric(difftime(t, as.POSIXct("1970-01-01"), units="days"))
  years <- days/365.25
  return(years)
}

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sealevel documentation built on May 2, 2019, 6:51 p.m.