Facebook-Prophet/R/man/cross_validation.Rd

% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics.R
\name{cross_validation}
\alias{cross_validation}
\title{Cross-validation for time series.
Computes forecast error with cutoffs at the specified period. When the
period is the time interval of the data, is the procedure described in
https://robjhyndman.com/hyndsight/tscv/. Beginning from end-horizon, makes
a cutoff every "period" amount of time, going back to "initial".}
\usage{
cross_validation(model, horizon, units, period, initial = NULL)
}
\arguments{
\item{model}{Fitted Prophet model.}

\item{horizon}{Integer size of the horizon}

\item{units}{String unit of the horizon, e.g., "days", "secs".}

\item{period}{Integer amount of time between cutoff dates. Same units as
horizon.}

\item{initial}{Integer size of the first training period. If not provided,
3 * horizon is used. Same units as horizon.}
}
\value{
A dataframe with the forecast, actual value, and cutoff date.
}
\description{
Cross-validation for time series.
Computes forecast error with cutoffs at the specified period. When the
period is the time interval of the data, is the procedure described in
https://robjhyndman.com/hyndsight/tscv/. Beginning from end-horizon, makes
a cutoff every "period" amount of time, going back to "initial".
}