

   lag {ts}                                     R Documentation

   LLaagg aa TTiimmee SSeerriieess

   DDeessccrriippttiioonn::

        Computed a lagged version of a time series, shifting
        the time base back by `k' observations.

   UUssaaggee::

        lag(x, ...)
        lag.default(x, k=1)

   AArrgguummeennttss::

          x: A vector or matrix or univariate or multivariate
             time series

          k: The number of lags (in units of observations).

        ...: Arguments for future methods.

   DDeettaaiillss::

        Vector or matrix arguments `x' are coerced to time
        series.

   VVaalluuee::

        A time series object.

   NNoottee::

        Note the sign of `k': a series lagged by a positive `k'
        starts earlier.

   AAuutthhoorr((ss))::

        B.D. Ripley

   SSeeee AAllssoo::

        `diff', `deltat'

   EExxaammpplleess::

        data(UKLungDeaths)
        lag(ldeaths, 12) # starts one year earlier

