Seasonality

Source: R/helpers.R

Calculates seasonality based on seasonally-interpolated vector.

seasonality_calc(interpolated_seasons, resid_time_series)

Arguments

interpolated_seasons

A numeric vector containing predicted (interpolated) de-trended residuals as obtained by function monthly_bins.
resid_time_series

A numeric vector containing unpredicted de-trended residuals as obtained by function monthly_bins.

Value

A list containing the sample variance of interpolated_seasons, resid_time_series, and the resulting seasonality. See details.

Details

Three types of seasonality are returned currently: an 'absolute' seasonality which corresponds to the sample variance of interpolated_seasons; an unbounded seasonality which corresponds to the ratio between sample variances of interpolated_seasons and resid_time_series; and a 'bounded' seasonality which corresponds to the sample variance of interpolated_seasons relative to the total summed variances of both interpolated_seasons and resid_time_series.

See also

monthly_bins, seasonality_and_colour.

Author

Diego Barneche and Scott Burgess.