seasrescheck function

Seasonal Residual Checks

Tests the residuals for any remaining seasonality.

seasrescheck(res)

Arguments

• res: residuals from some time series regression model.

Details

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

Examples

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

Author(s)

Adrian Barnett a.barnett@qut.edu.au