Seasonal Residual Checks

Tests the residuals for any remaining seasonality.

Usage

seasrescheck(res)

Arguments

res

residuals from some time series regression model.

Value

four plots: 1. The histogram of the residuals; 2. A scatter plot against residual order; 3. The autocovariance; 4. The cumulative periodogram (see cpgram()).

Details

Plots: i) histogram of the residuals, ii) a scatter plot against residual order, iii) the autocovariance, iv) the cumulative periodogram (see cpgram())

Author

Adrian Barnett a.barnett@qut.edu.au

Examples

# \donttest{
# cardiovascular disease data
# (use an offset of the scaled number of days in a month)
model <- cosinor(
  cvd ~ 1,
  date = 'month',
  data = CVD,
  type = 'monthly',
  family = poisson(),
  offsetmonth = TRUE
  )
seasrescheck(resid(model))

# }