The CONE OF INflUENCE is introduced to treat the edge effect of edge artefacts of the CWT due to incomplete time localization of the wavelet. The area where the discontinuity at the edge has dropped to e−2 of the value which causing the wavelet power is considered as a cone of influence.This paper applies the Monte Carlo methods used by Torrence and Compo (1998). Under the null, according to Torrence and Compo (1998), the corresponding distribution for the white and red noise wavelet power spectrum each time (t) and scale (s) is given as:
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