Vol. 2, Issue 4, Part A (2015)

Fig. 1: Time series plot of aggregated dengue cases in Sri Lanka from January, 2009 to September, 2014.

Fig. 2: Wavelet power spectrum of the aggregated weekly dengue cases time series for Sri Lanka, from January, 2009 to September, 2014.

Fig. 3: Wavelet power spectra of dengue incidence in 25 districts in Sri Lanka (time on x-axis, period on y axis)

Fig. 4: Average wavelet power spectrums (periodicity on x axis, average power on the y-axis)

Fig. 5: Dendrogram of wavelet cluster analysis

Fig. 6: Results of wavelet cluster analysis (red – cluster 01, blue – cluster 02)