a href="../reference/seasonal_onset.html">seasonal_onset()</a></code> function
can be used for this purpose, without providing the disease-specific
threshold. Then the <code><a href="../reference/consecutive_growth_warnings.html">consecutive_growth_warnings()</a></code> function
can be used to create groups with subsequent significant weeks. The data
can then be analysed, else you can use plot/autoplot to visualise the
sequences of significant weeks for each season.</p>
<p>The <code>average_observation_wind